Food System and Nutrition Fun with Coursera

Coursera is an online educational platform that partners with colleges and universities around the world to offer free courses across a wide variety of topics. I’ve taken a few classes and enjoyed them all: the lectures, quizzes, and projects have been well designed, and it’s obvious a lot of work has been put into them; and the flexibility of the weekly assignments makes it easy to fit the coursework into my schedule. I highly recommend checking out the list of courses being offered if online learning is your cup of tea.

Below are details about an upcoming course I am super excited about, and two others I have taken in the past that are relevant to Haute Pasture.


Gut Check: Exploring your Microbiome

Imagine if there were an organ in your body that weighed as much as your brain, that affected your health, your weight, and even your behavior. Wouldn’t you want to know more about it? There is such an organ — the collection of microbes in and on your body, your human microbiome.

From University of Colorado Boulder

About the Course

The human body harbors up to ten times as many microbial cells as human cells. What are these microbes and what are they doing? How can we study them to find out? What do they tell us about ourselves? Just as our human genome records traces of who we are and the conditions we have adapted to during evolutionary history, our microbial genomes may record traces of what we have eaten, where we have lived, and who we have been in contact with. The microbial ecosystems in different parts of our bodies, which differ radically from one another, also supply a wide range of functions that affect many aspects of human health.

Join us on a guided tour of the human gut and its microscopic inhabitants. We will first review what microbes are and how they get into our bodies. We will then discuss the methods we use to study microbial communities and briefly explore how gut microbiome data are analyzed. This information will provide us with a foundation to explore current microbiome research. We will cover topics such as the influence of the gut microbiota on our nutrition, health and behavior. Did you know that gut microbes may influence how sick we get or the way we feel? The course will culminate with an in-depth review of the American Gut Project, the world’s largest open-source, crowd-sourced science project, from how it works to what it’s taught us up until now.

This course starts October 6th and it should be fascinating!


The Meat We Eat

The Meat We Eat is a course designed to create a more informed consumer about the quality, safety, healthfulness and sustainability of muscle foods and address current issues in animal agriculture in developed and developing countries.

From University of Florida

About the Course

The average American is now at least three generations removed from production agriculture.  This leads to the disconnection between how the public views agriculture and how scientists and producers view it, resulting in consumer distrust of science and commercial food production.  It is this lack of trust which leads to consumer confusion and the urge to grasp at multiple solutions.  However a growing number of consumers in developed countries are aspiring to “know where their food comes from”.  Animal agriculture needs to explain the technology which will be used to sustainably feed 9 billion people by 2050.

Lectures will cover all aspects of muscle foods production, processing, preparation, cooking and storage.  Additionally, the role of muscle foods in a balanced diet will be addressed as will issues which contribute to consumers limiting or eliminating meat from their diets.

I took this course in the summer of 2014. The final project for the course was a multimedia presentation on meat cookery; mine is here.


An Introduction to the U.S. Food System: Perspectives from Public Health

Explore how food intersects with public health and the environment as it moves from field to plate.

From Johns Hopkins Bloomberg School of Public Health

About the Course

A food system encompasses the activities, people and resources involved in getting food from field to plate. Along the way, it intersects with aspects of public health, equity and the environment.  In this course, we will provide a brief introduction to the U.S. food system and how food production practices and what we choose to eat impacts the world in which we live. Through several case studies, we will discuss some key historical and political factors that have helped shape the current food system and consider alternative approaches from farm to fork. The course will be led by a team of faculty and staff from the Johns Hopkins Center for a Livable Future.  Guest lecturers will include experts from a variety of disciplines, including public health and agriculture.

I took this course in early 2013, and wrote several posts (really just bulleted lists of my notes) about the course:

Overview

Week 1: Introduction to Food Systems, Equity and the Environment

Week 2: Food Systems, Food Security and Public Health

Week 3: Public Health and Environmental Implications of Industrial Models of Food Production

Week 4: Food and Farm Policy

Week 5: Alternative Approaches to Food Production

Week 6: Diet, Food Environments, and Food Access

Butter Churning Skill Share

On Monday night, our daring dairy divas Cheenius and Butter Boy, after honing their churning technique at home, presented their butter knowledge to an eager group at a crowded Transition Charlottesville Skill Share session. The presentation was fantastic, complete with expert commentary, audience participation, butter trivia and jokes (we learned there are no funny butter jokes), and buttermilk shooters. We tasted the final product on tasty Great Harvest bread and those of us who paid attention to the email and brought containers (thank you for your spare, Rachel!) took home some of the freshly churned gold. Your intrepid reporter’s favorite aspect of the evening was learning about making butter in a jar: pour in some cream, shake it for about 25 minutes — OR throw the jar in a backpack and go for a hike, ride a horse, mountain bike, etc etc etc — and boom, you have butter. Look for a Haute Pasture Research Experiment Report on that soon.

Thank you Cheenius and Butter Boy for a delicious evening!

butter cream

(we started with this)

churning the butter

(then we took turns churning)

shaking the jar

(and we took turns shaking)

butter in the churn

(we peeked a couple times for status updates)

antique butter stamp

(we did not use Cheenius’ antique butter stamp)

jar of almost-butter

(the jar butter is almost done)

bread for our butter

(butter vehicles)

jar of butter

(it’s ready!)

butter from the jar

(the jar butter)

rinsing the butter

(rinsing the churned butter)

butter

(we did it! let’s eat!)

An Introduction to the US Food System, Week 5: Alternative Approaches to Food Production

Here are my notes from Week 5, the penultimate week of the free, online course I’m taking on US Food Systems from Johns Hopkins. This week we got to the topics of most interest to me, and to this blog: alternatives to industrial animal farming, and the importance of local food systems. If you’ve heard or read Joel Salatin, most of the points below will be familiar. Read previous weeks’ notes here: Week 1, Week 2, Week 3, Week 4.

Lecture: The Sustainable Agriculture Imperative

Michael Heller conducts a sustainable farming practice on Clagett Farm in Maryland, which is owned by the Chesapeake Bay Foundation. Clagett Farm is 300 acres, and produces vegetables, grass-fed beef, and native nursery plants.

Avg distance the food on your plate travels: 1600-1800 mi = excessive use of fossil fuels. Buy local!

Ag is the #1 source of pollution hurting the Chesapeake Bay: >40% of the water is a dead zone

Clagett Farm
Vegetables
Need to plan for:

  • Weed control
  • Pest control
  • Fertility

Sustainable practices:

  • Crop rotation: 5 or 7 year cycles, changing crop each year to restore nutrients to the soil, optimizing for available nutrients, keeping pests under control
  • Cover crops: Helps prevent erosion, improve soil, build fertility, control pests. Just as important as food crops. Fields should never be left bare.
  • Mulching: Weed control, coverage when cover crops can’t be used–cover crops compete with food crops for moisture. Straw provides nutrients to soil, controls weeds by shading sun, controls pests that don’t like to walk across it.

Grass-fed beef

  • Soil rebuilding, naturally: Soils rebuilt by grass and cattle on steep land, or soil “mined” by corn and soy
  • Disease control without antibiotics: Keep cows happy and comfortable -> low stress -> low disease. Closed herd: all cows were raised on farm, except a bull who is quarantined before being introduced to herd. So no antibiotics needed, few health problems.
  • Grass management through rotational grazing: Put cows on a plot, let them eat grass all the way down, then move them to fresh grass. Short grass allows clover to grow. Cows manage grass, so little seeding required.
  • Compost for soil improvement: Winter hay includes manure. Bacteria break down manure, straw, woodchips. Keep pile aerated, warm, dry. Weed seeds in pile killed by heat of bacteria working. Used as fertilizer, rebuilds soil, provides nutrients

Decision-making criteria for sustainability

Adopting new technology, deciding what to offer CSA members, whether to cut hay or let cows eat the grass, etc. Criteria are:

  • Community
    • Interactions with community via marketing; includes farm workers, farm animals, wildlife
  • Economics
    • Don’t let it become the domineering criterion.
  • Control for farmer
    • Does it give the farmer more or less control over what he’s doing? Ex: raising poultry for a corporation, which dictates amount of food, water, light, etc.
  • Control for consumer
    • More or fewer choices for consumer?
  • Energy
    • Let the cows harvest their food and spread their manure
  • Ecology
    • Soil building, water quality. Are we working with or against environmental processes?

Local food systems

Cheap food good for consumer, hard for farmer, leads to consolidation into big corporate farms, less and less % of $ going back to farmer

To bring community to farm:

CSA
Buy a share of farm output. Each week shareholders weigh their veggies and bag them themselves.

Grass-fed beef
Buy a quarter steer.

Annual festival
Entertainment, farm tour

To take food to people who can’t get to the farm:
Farmers’ Market, Food Bank, Farmers’ Market coupons for low-income consumers


Video: Out to Pasture: The Future of Farming?

http://www.youtube.com/watch?v=MrRqi8-Y8ak

  • Industrial ag degrades, erodes soil, pollutes environment -> can’t support future generations
  • Chickens
    • 8B animals raised and consumed in US each year. Over 7B are poultry, mostly chickens
    • Multinational corps control operations on individual farms
    • Manure biggest problem. Full of nitrogen, phosphorus, heavy metals, antibiotics. Put on soil, runs into waterways.
  • Cows
    • Preserve biodiversity rather than limit it
    • Use animal waste to restore fertility to soil
    • Animals recycle plant materials
    • Cows are not built to eat grain
    • Smaller farms need to move to pasture-based system to stay in business
  • Hogs
    • Produce 5x the waste of a human, with no treatment plants
    • Held in lagoons, sprayed on crop fields
    • Dust causes respiratory problems, liquid gets into watertable
    • Contract producers have to buy facilities, deal with waste, have no control, and are only guaranteed contract for a single flock/herd
    • Easier to keep hogs healthy outdoors: get minerals from ground, nutrients from trees, plants, they’re happier
    • Better meat when they’re kept outdoors
    • Humane treatment: no shockers, can’t kick or mistreat them, no antibiotics or hormones or steroids, have to give them forage, minimum space requirements
    • Hogs have personalities
  • Animals connect us to the earth
  • It’s not (or shouldn’t be) all about the money
  • Need to educate consumers
  • Need to vote with dollars
  • Transform the food system one consumer at a time

Video: The Future of Agriculture, Parts I and II

http://www.youtube.com/watch?v=8TDjIOsWtcA
http://www.youtube.com/watch?v=8_LNWDPwY0g

The Future of Agriculture
Being organic does not necessarily mean you are sustainable.

Think of sustainability as a concept of resilience, rather than steady-state, in the face of the challenges we will be facing in the future:

  1. Energy. Era of easily-obtained carbon-based energy is coming to a close. Oil produces corn that produces ethanol–still petroleum based. Think about energy/profit ratio–there’s not going to be a technological rescuer; we have to redesign systems instead.
  2. Water. Current economy enormously water-consuming. Agriculture draining water reserves at terrifying rate. Most crop production globally relies on irrigation. We need 4L of water a day to live, but we consume 2000L a day through all the food we eat!
  3. Climate Change. Current ag systems highly monocultured and specialized–require consistent climate to maintain productivity.
  4. Ecological degradation. Ecological resources are foundation of any ag system, but ag systems are destroying ecological diversity, most importantly: soils. Can no longer absorb and hold water as well, no longer the has nutrient capacity as when it was biologically active.

An Introduction to the US Food System, Week 4: Food and Farm Policy

Here are my notes from Week 4 of the free, online course I’m taking on US Food Systems from Johns Hopkins. I cleaned them up a bit, but they’re still pretty raw: just for my reference and your education. Read previous weeks’ notes here: Week 1, Week 2, Week 3. This week, I particularly enjoyed the TEDxManhattan lecture, From Fables to Labels, which is only 13 minutes long. Check it out!

This week’s lectures and readings cover the past, present, and future of the Farm Bill and US food policy.

Farm Bill History

Overview
Many policies affect food at federal, state, local levels. State and local levels a “laboratory” for policies that might be able to be scaled up to a federal level

It’s a public health bill; it affects:

  1. What we eat
  2. Environmental health/sustainability
  3. Food security
  4. Equity
  5. Rural public health

We need government in agriculture. Why?

  • Farmers need security in order to go into business. Weather unpredictable; market unpredictable.
  • Protect environment: Farmers tend to overproduce and use unsustainable practices
  • Ensure food supply: Consumers need to be able to afford and access food

Farm policy over the years

  • 1800s western expansion of farming. Homestead act, railroads
  • 1914 extension system through university partnerships to increase use of technology, productivity
  • Tearing up prairies to put in crops, leave fields open w/out cover crops. Topsoil blew away. Droughts + wind -> erosion -> dustbowl
  • 30s: Farmers hungry and demonstrating, consumers hungry and demonstrating -> first Farm Bill
  • New Deal brought first Farm Bill in 1933 to stabilize prices
    • Ever-normal Granary: store crops to stabilize prices
    • Mandatory idling of land to limit overproduction and keep prices up
    • Land and water conservation
    • Subsidized school lunches
  • 1938, 49 bills are permanent legislation–if we can’t pass a farm bill we return here!
    • 1949 started donating surplus food overseas
  • 1970 some stuff in the bill became voluntary instead of mandatory
  • 1973 big changes
    • Wetlands drained, forests cut down to increase farmland (“Fencerow to fencerow”)
    • Maximize yield rather than manage supply
    • Trend towards big farms
    • Processes industrialized
    • Foodstamps introduced
  • 1985 and 1990 more environmental programs–maybe because of problems from 1973 changes?
    • Conservation
    • Wetlands preservation
    • Research into sustainability
  • 1996 “Freedom to Farm”
    • High commodity prices, high incomes
    • Aim to end govt intervention in commodities (land idling, reserves, prices support policies)
    • Ending govt intervention led to price drop, more govt payouts -> dropped plan to end subsidies
  • Subsidy levels currently high following bill having purpose of ending subsidies!

2008 Farm Bill Policy
Food, Conservation, and Energy Act

  • 800+ pages
  • about 2/3 of it is Nutrition section, then Commodities, then Conservation
  • Most money spent on SNAP program

What Farm Bill supports does not look like what govt recommends we eat!

Fruits and veg have become more expensive, junk less expensive over the years. Based on subsidies for commodities?

Commodities: where all individual items interchangeable: corn, wheat; and can be stored or processed

Commodity subsidies:

  • Direct payments
  • Countercyclical payments
  • Lots of other assistance
  • $5.2B/yr per 2008 bill
  • More than 80% of $ goes to corn, wheat, cotton, soybeans, rice
  • 20% of recipients get 90% of the money
  • Crops sold at lower-than-production prices, so subsidies are safety nets and keep farmers farming
  • Do subsidies drive overproduction, or does lack of price stability drive overproduction? Seems to be lack of price stability
  • Do subsidies drive obesity? Unclear:
    • Yes: processed food crops, marketing, concentrate power in food industry
    • No: see our same obesity trajectory in other countries, farm price has small impact on food price

Current food supply would not allow for everyone in US to follow govt’s nutritional guidelines

How can Farm Bill increase fruit/veg production?

  • Research to build yields
  • Provide growers insurance and loans (like other growers get)
  • Marketing funds

How can Farm Bill increase access to healthy food?

  • Bring free healthy snacks into schools
  • Support farmers’ markets
  • Support community initiatives
  • Allow schools to say they want their food to come from local/regional sources
  • Incentives for SNAP program to buy fresh fruit/veg

How can Farm Bill improve environmental health/sustainability?

  • Address problems from incentive to overproduce
    • Gulf of Mexico deadzone from areas where most subsidies are given (fertilizer)
    • CAFOs, pesticides, decreased biodiversity
  • Conservation compliance
    • If you’re farming on conservation land, you must meet minimum reqs. Possibly has improved erosion
  • Conservation reserve
    • Pays farmers rent to take land out of production to restore groundcover
    • Farmers taking land out of program as they realize they can make more $ farming it
  • Conservation stewardship
    • Rewards for conservations initiatives across entire farm
  • EQIP
    • Assistance for sustainable practices
      • Switching to organic
      • Energy conservation
      • Forest/water conservation
    • Might be misused by big livestock corps: 60% of $ goes to livestock producers
  • Organics support
  • Renewable energy
    • Shift away from ethanol

Other Farm Bill programs:

  • Hunger and food security: SNAP, food banks, incentives to buy fresh fruit/veg, research
  • US Food aid internationally: ocean shipping takes 4-6 months to arrive. Undermines local farmers. Profits to Big Ag and shippers. 2008 FB tries giving cash instead.
  • Equity provisions: Livestock growers given more power to promote competition
  • Rural healthcare: telemedicine
  • Research: healthy/sustainable production methods, climate change, peak oil, nutrition, food safety, obesity, food security

Farm Bill Today

Farm Bill Politics
Ag committees in house and senate: senators and reps from farming states, mostly commodity production areas.

Stakeholders: Agriculture, agribusiness. Anti-hunger community becoming stronger player. Sustainable ag, environment community, int’l development, community food security, public health, cities

Public health’s involvement:

  • Success with priorities in 2008 bill
  • 2012 how to be most effective?
    • Ally with agriculture, nutrition, other groups

2012 Farm Bill
Marker bills hoping to get into bill:

  • Local Farms, Food, and Jobs Act
  • Healthy Food Financing Initiative

Money devoted to 37 programs due to expire–many public health and conservation

Republicans wanted to change SNAP; farmers wanted to end direct payments program to be replaced by crop insurance. Taking away direct payments removes requirement to adhere to conservation policies.

Budget problems: focus on low-cost programs.

Election year: extra political shenanigans in 2012

  • Sequestration could cut $7B from FB
  • Senate wrote and passed a FB cutting $23B
  • House Ag committee passed a FB cutting $35B; didn’t make it to the floor. Why?
    • Repubs cut SNAP benefits; Dems didn’t like
    • Debates could harm candidates
    • Spending so much $ could harm candidates
    • Removing benefits could harm candidates

Drought: worst in 25 years impacts farmers, increases need for farmer help in bill

Farm Bill expired Oct 1, 2012. Revert to 1938, 1949 Farm Bills–expensive, unrealistic to apply to modern times. Extension to end of Sept 2013 agreed upon by House and Senate Ag Committees, but full Congress didn’t like it–would threaten fiscal cliff legislation. McConnell and Biden came up with their own extension and put it into fiscal cliff legislation, and it passed. Committee leadership furious. What was it?

  • Prevents dairy price increase–BUT–
  • No input from committee leadership
  • No reforms
    • No changes to SNAP
    • Direct payments kept
  • No deficit reduction
  • The 37 programs due to expire expired
  • Probably no new enrollment in conservation stewardship
  • No disaster protection for most farmers
  • Many mandatory conservation programs became discretionary

Challenges upcoming: sequestration, debt ceiling, new committee members. Need to pass a better FB soon.

Important things missing from discussion:

  • Climate change
  • Industrial farm animal production
  • Commodity program reform
  • Competition
  • Worker health

Need expansion:

  • Support for farmers who are new, sustainable, diversified, transitioning to better practices, fruit/veg producers, small/mid-sized, or socially disadvantaged
  • Increase local/regional, healthy food demand
  • Local/regional food infrastructure improvements
  • Research for healthier food system

TEDxManhattan lecture: From Fables to Labels

http://www.youtube.com/watch?v=3mZ2KQ9iB_8&feature=player_embedded

  1. Consumers will pay more for labels that they think add value
  2. Consumers are misled to believe that some labels are meaningful
  3. That dilutes consumer demand, and dilutes moving the marketplace forward

Labels need to be truthful:

  • Natural: manufacturers can use it to mean whatever they want. Polls show consumers confuse this with organic, which has 600p of standards, is a regulated program
  • Fresh: can use it on frozen chicken!?
  • Free range: means animals have option to go outdoors for undefined period of time. Doesn’t mean they actually went out.

… transparent:

  • GMOs: not enough science behind it, most people want labelling
  • Mad cow tested: govt left some loopholes in animal feed in place, so Japan said they didn’t want our beef. A farm wanted to test themselves and give themselves this label, but gov’t said no, the test isn’t good enough–even though it’s the same test the gov’t uses to test for mad cow.
  • Carbon monoxide added: to improve red color in meat. Considered a food additive by FDA, so no labelling required
  • Country of origin labelling: animals often born, raised, slaughtered in different countries. Int’l complaining that it’s not good for trade so this label is in peril.

… trustworthy:

  • Redefinition of HFCS. Calling it corn sugar. Shouldn’t be allowed to change name to confuse consumers.
  • Cold-pasturized: meat producers don’t want to call it irradiation. Irradiation isn’t held to same health standards as pasturization
  • No nitrates: natural nitrates same as synthetics, but gov’t allows labels to say no nitrates if natural nitrates are used.

Good labels: organic, grass fed, Animal Welfare Approved


Reading: Principles for Framing a Healthy Food System

http://www.tandfonline.com/doi/full/10.1080/19320240903321219

Principles for moving toward a healthy food system:

Principle 1: It would insure community food security for all residents
Principle 2: It would be community-based
Principle 3: It would be locally integrated
–Not reasonable to expect all food to be grown locally
Principle 4: It would be reasonably seasonal in nature
Principle 5: Present primarily opportunities rather than problems
Principle 6: Connect “healthy” across the layers of the system
–Soil to plants (to animals) to people to communities
Principle 7: Be diverse


Reading: A 50-Year Farm Bill

http://www.nytimes.com/2009/01/05/opinion/05berry.html?emc=eta1&_r=2&

Soil is abused and non-renewable. More valuable than oil but no lobby.

  • Erosion
  • Polluted by fertilizers, pesticides

Industrial agriculture relies on fossil fuels

We’re headed for disaster. Need to:

  • Rotate crops for year-round soil coverage
  • Develop grain-bearing perennials

“We need a 50-year farm bill that addresses forthrightly the problems of soil loss and degradation, toxic pollution, fossil-fuel dependency and the destruction of rural communities.”


Reading: Do Farm Subsidies Cause Obesity

http://www.foodandwaterwatch.org/tools-and-resources/do-farm-subsidies-cause-obesity/

Deregulation of commodities, not subsidies, has impacted commodity crop prices, incentives to businesses leading to more processed food consumption

Recommendations:

  • Reform commodity policies by developing responsible federal supply management
  • Increase consumption of fruits, veg, whole grains, especially in underserved communities
  • Help farmers diversify crops and supply local/regional markets
  • Improve infrastructure of healthy food delivery

Findings:

  • Removing subsidies would not curb overproduction of commodity crops
    • Because farmers collectively tend to overproduce without some sort of government intervention, the academic literature finds that subsidies themselves do not cause overproduction
    • If subsidies were removed, farmers’ income would drop, causing smaller farms to be sold to larger farms. Overproduction would not decrease.
  • Low commodity prices offer savings to the food industry, but not to consumers at the grocery
    • Low feed prices for animals, low corn prices for HFCS
    • Over the last 3 decades, grocery prices have gone steadily up, but corn prices have fluctuated wildly
    • Commodity prices make up tiny percent of retail cost of food. Most $ goes to makers, retail, marketers
  • The food industry has been the main driver of commodity policy, not farmers
    • Livestock industry wants high production and low prices for feed
  • Removing subsidies before commodity supply and prices have been managed will not stop overproduction, but could harm small/mid-sized farms
    • 82% of small/mid-sized farms receive subsidies
    • Need to support small/mid-sized farms as they are able to diversify and supply local/regional markets

An Introduction to the US Food System, Week 3: Public Health and Environmental Implications of Industrial Models of Food Production

Below are my notes from week 3 of the excellent free online course I’m taking through Johns HopkinsRead week 1 notes here, and week 2 notes here. If you’re enjoying these notes, consider signing up for the course. It’s not too late, and I’d be interested to hear what you think!

This set of lectures covers: an introduction to industrial food animal production (IFAP); what are we feeding the animals; the use of antibiotics and arsenical drugs; and the international expansion of these practices.

An Introduction to Industrial Food Animal Production

Industrial food animal production

  • Animal feeding operation (AFO) = animals confined for 45 days per year; no other crops
  • Concentrated animal feeding operation (CAFO) = >1k animal units = > 1mil lbs of live weight
  • Industrial food animal production:
    • High-throughput production methods
    • One site
    • Controlled conditions
    • Uniform consumer product
    • Small profit margins

Substantial increases in meat production in last 50 years; largest jump in chicken production. Number of farms drops off dramatically as number of animals per farm shoots up.

Majority of poultry and swine facilities (>90%) operate under “vertical integration” model: a large “integrator” corporation owns animals, controls inputs, owns processing plants. Growers under contract and own/manage animal waste.

We’re producing over 9 billion animals per year for human consumption.

What are we feeding food animals?

  • Antibiotics and hormones
  • slaughtered animal byproducts
  • animal waste
  • industrial waste (containing minerals deemed nutritious, but also chemicals and heavy metals)

What do we do with their waste?

Animal waste mostly not treated before being applied to land. Can be stored for a while in hopes of reducing pathogen load. Contains:

  • bacteria
  • protozoa
  • viruses
  • animal dander
  • pharmaceuticals
  • heavy metals
  • hormones
  • nutrients

Pelletized poultry waste: sold in bags as fertilizer

Waste gets into water, air, soil: land application, failed storage systems, waste incineration, animal-house ventilation, direct (illegal) releases into surface waters. Groundwater makes 40% public water supplies and 97% rural water supplies. Other contaminant transport mechanisms: transport trucks, workers, flies, in the meat itself.

Occupational hazards: 5mil workers in direct contact with animals or with waste products; no federal oversight=no OSHA protection; often not given protective equipment; sometimes not given access to decontamination facilities like showers; can take contaminants home to families.

Air contamination from production facilities: gases (ammonia, hydrogen sulfide, volatile organic compounds w/ unknown risks), particulates, microorganisms, endotoxins, animal dander

Community risks: increased exposure -> asthma, allergies, mental health issues; odors; property damage, housing values drop

Antibiotics in animal agriculture 
Antibiotics used in people, food animals, even crop/ethanol production. All uses contribute to resistance development, but some more than others.

FDA est usage in 2010: 4x more used to treat animals than humans. Using the same antibiotics in animals as in people leads to resistant bacteria which are spread from farms and infect people.

4 purposes (per FDA) for antimicrobials in food production:

  • Teatment: sick animal
  • Control: one animal is sick, treat others
  • Prevention: expecting disease to occur
  • Production: growth promotion (grow faster), feed conversion (maximize amount of growth per unit of feed fed)

Prevention and growth promotion: lower dose for longer, most OTC, most administered via feed, to entire herd. Quantities hard to track because feed mixes are considered proprietary and companies not required to report on it.

Resistance–

  • via natural selection
  • via genetic sharing (horizontal gene transfer). Viruses, sharing via contact
  • via mutagenesis and resistance. New genes created
  • Reservoir of resistance, bacterial altruism: sharing resistance across communities of bacteria

Feed/water administration leads to uneven dosing–mixing feed, animals absorb differently. Over-administration leaves residues in products; under-administration leads to resistance; variable administration leads to mutations, treatment failures

Spread of resistant bacteria via transport trucks, workers, meat, manure lagoons, air, birds, manure as fertilizer on croplands

Consequences: antibiotics no longer work on resistant infections. Hospital stays longer and more expensive.

Denmark eliminated growth-promoting antibiotics in pigs in 1998. Results:

  • increases in weight gain and mortality in pigs
  • total antibiotic consumption down by 50%
  • reduced resistance

US programs: Animal Drug User Fee Act–FDA tracks data; Preservation of Antibiotics for Medical Treatment Act–limit use of medically important antibiotics (not yet politically viable); Strategies to Address Antimicrobial Resistance Act–data tracking (not yet politically viable)

Arsenical drugs
Most common: Roxarsone. In poultry and swine feed since 1940s, for pinker meat, parasite control.

  • FDA set levels in 1951 that are still in use despite known health risks
  • Arsenic stays behind in chicken and in manure, in both toxic inorganic form and organic form
    • Chicken manure sometimes fed to cows
    • Chicken manure sometimes burned for energy
    • Runoff into waterways, taken up by seafood
    • Arsenic stays behind in treated soil
    • Crops can take up arsenic
  • Unknown type (inorganic/organic) in chicken meat
  • Approx 11 tons of arsenic released per year, but we don’t know where it goes

Inorganic arsenic = Carcinogen, cardiovascular disease, diabetes, skin, neuro, immunologic, bad, bad bad

2011 Pfizer suspended sale of Roxarsone in US pending further study, but still sells internationally–due to FDA study prompted by public concern, showing inorganic arsenic in chicken livers.

Lack of regulation. Legislation: 2009 Poison-free Poultry Act–no progress. 2010-12 MD bills–finally progress in 2012. Why 2012? FDA study showed inorganic arsenic may be present in chicken meat; report showing arsenic may stay in soils and groundwater and may be environmentally unsustainable; advocates/organizing -> not wise to feed an animal we intend to eat an arsenic-based drug!

Histostat (nitarsone) is another arsenic-based drug, used to fight a turkey disease. May be a loophole for continuing use of arsenical drugs in chickens in MD.

Food animal production abroad
Chicken production way higher in China. US #2
Swine production same
Cattle production: US#3

–so it’s not just us

US integrator companies expanding internationally. Could be fewer regulatory protections in other countries. Workforce, environment, drugs. Ethical considerations: food could be for export, not for consumption in that country–the citizens just have to deal w/ waste.

Reading: Putting Meat on the Table: Industrial Farm Animal Production in America

https://spark-public.s3.amazonaws.com/foodsys/Pew.PuttingMeatontheTable.2007.v2.pdf
A report of the Pew Commission on Industrial Farm Animal Production

Notable quotes:

    • At the end of his second term, President Dwight Eisenhower warned the nation about the dangers of the military-industrial complex—an unhealthy alliance between the defense industry, the Pentagon, and their friends on Capitol Hill. Now, the agro-industrial complex—an alliance of agriculture commodity groups, scientists at academic institutions who are paid by the industry, and their friends on Capitol Hill—is a concern in animal food production in the 21st century
    • …The ratio of fossil fuel energy inputs per unit of food energy produced averages 3:1 for all US agricultural products combined. For industrially  produced meat products, the ratio can be as high as 35:1 (beef produced in feedlots generally has a particularly unfavorable energy balance)
    • Recently, animal scientists in Europe published a set of standards to define basic animal welfare measures. These include five major categories, which must be taken in their entirety: feeding regimens that ensure that animals do not experience prolonged hunger or thirst; housing that ensures resting comfort, a good thermal environment, andfreedom of movement; health management that prevents physical injury, disease, and pain; and appropriate meansto allow animals to express non-harmful social behaviors, and other, species-specific natural behaviors
    • The Commission’s technical report on economics in swine production showed that the current method of intensive swine production is only economically efficient due to the externalization of costs associated with waste management. In fact, industrialization leading to corporate ownership actually draws investment and wealth from the communities in which specific ifap facilities are located
    • The Commission’s six primary recommendations:
      • Phase out and then ban the nontherapeutic use of antimicrobials
      • Improve disease monitoring and tracking
      • Improve IFAP [waste handling/treatment] regulation
      • Phase out intensive confinement
        • The Commission recommends the phase-out, within ten years, of all intensive confinement systems that restrict natural movement and normal behaviors, including swine gestation crates, restrictive swine farrowing crates, cages used to house multiple egg-laying chickens, commonly referred to as battery cages, and the tethering or individual housing of calves for the production of white veal.  In addition, the Commission recommends the end to force-feeding of fowl to produce foie gras, tail docking of dairy cattle, and forced molting of laying hens by feed removal.
        • Not all of the systems that employ such practices are classified as “cafo”s, as intensive confinement can occur in facilities that are not big enough to be classified in that manner
        • Unbeknownst to most Americans, no federal regulations protect animals while on the farm. The Humane Methods of Slaughter Act was enacted to ensure that animals are rendered “insensible to pain” before slaughter, but poultry are not included under its protection despite the fact that more than 95 percent of the land animals killed for food in this country are birds
      • Increase competition in the livestock market [via anti-trust laws]
      • Improve [independently-funded] research in animal agriculture

An Introduction to the US Food System, Week 2: Food Systems, Food Security and Public Health

“The food system is run by people who know nothing about health, and the health system is run by people who know nothing about food.” — Wendell Berry

Below are my notes from week 2 of the excellent free online course I’m taking through Johns Hopkins. Read week 1 notes here. Again, these notes are just what I type up while listening to the lectures, and aren’t fancified for posting here.

This set of lectures covers: Food security introduction, food system definition, history of food production and its effect on society.

Food Security

Exists when all people at all times have access to sufficient safe, nutritious food for health/activity needs, with implementation via sustainable methods.

The right to adequate food is a human right.

History of concept: in 70s, hunger was seen as a food problem, so focus was on ensuring adequate food supply and stabilizing food supply. 83 addition: securing access to food for anyone who needs it; 86 addition: adequate food to fuel active and healthy life; 96 addition: Rome Declaration signed by 176 countries declares reaffirmation to everyone’s right to food.

UN Millennium Development Goals: first goal is to eradicate extreme poverty and hunger. Cut each in half by 2015. Progress on each as of 2004, but poverty slow to improve in W Asia, sub-Saharan Africa, former SSRs, and hunger slow to improve in S Asia, sub-Saharan Africa.

Methods of Food Production for Food Security

Soil (topsoil quantity), water quality, natural resource sustainability

  • Erosion of topsoil–depth from 21″ 200 yrs ago to 6″, on farmland
  • 60% freshwater used goes to crop irrigation
  • fisheries fully exploited or in decline/collapsing; overfished by 25%
  • industrial production methods affect small farmers and retail, and rural communities

World food production is adequate to feed everyone, if distributed equitably. More than enough food calories per person is currently available. 1 billion (1/5 of total) undernourished/underweight. But 1 billion suffer from diseases of overnutrition (diabetes, heart disease, obesity)!

More people could be fed if people relied on grain-based diet rather than animal protein-based (American-style) diet, that is more equitably distributed.

Food security exists when people have physical and economic access to sufficient safe, nutritious, sustainably produced, and socially just (to producers) food to meet their dietary/cultural needs and activity levels

New threats: biofuels, climate change, increasing meat production

Ingredients of the US Food System

“How we eat determines, to a considerable extent, how the world is used.” –Wendell Berry

Overview

  • Scope and magnitude of US food system: 1 billion acres agricultural land + >2 billion food animals
  • Influences + Inputs -> Activities [production, processing, distribution, retail, consumption] -> Outcomes

Early History

  • Humans 150,000 years ago. Hunter-gatherers.
  • Agriculture 11,000 BCE (fertile crescent and other areas)
    • motivated by glacial conditions?
    • motivated by larger/denser populations?
    • more work for more stable/abundant food supply (10-100 more calories per acre)
    • 4mil global pop before agriculture grew to 50mil in 1000 BCE, and 200mil in 1 CE
  • Settlements around agriculture grew to towns and cities. Uruk=world’s first city, 3000 BCE, 50k people
    • Now that they don’t have to hunt/gather, people can focus more on art, literature, technology, politics, social classes
  • Periodic famine in Europe as population grows exponentially
    • Famine drivers
      • pop growth, resource degradation, climate, drought, conflict
      • early farmers often depleted soil fertility
        • plow -> erosion
        • Dust Bowl in 1930s from erosion
    • Population growth sustained by
      • Imported crops from the Americas–improved nutrition
      • Refrigeration improves lifespan of food
      • Transportation network improvements
      • Nitrogen fertilizer in the 1900s increased output big time

Industrialization

Industrialized agriculture is less labor-intensive, makes food/farming cheaper, encourages consumerism by leaving more money in people’s pockets to buy stuff

Union Stockyards in Chicago for slaughter, process, packing, distribution. Largest in country in 1900. Inspired Henry Ford’s auto assembly line.

Characteristics of a factory:

  • Specialization
    • More efficient to focus on one thing. Skills, tools, facilities
    • Monocultures of corn or soybean (over half cropland is devoted to those two)
  • Mechanization
    • Simpler, more routine work can be replaced by machines
  • Standardization
    • Different facilities can better work together if specs are standardized
      • Grow chickens to same size so machines can handle
      • Sell meat of a certain size to restaurants
  • Technology + inputs
    • Special feed, breeding techniques to grow animals faster, bigger, cheaper
    • Chemicals, drugs, fossil fuels use increased
  • Economies of scale
    • Operations grew to gain efficiency in mass production
  • Consolidation
    • Trend toward larger and fewer facilities. Machines mean fewer workers needed. Smaller farms can’t afford same technology, economies of scale.
  • Concentration of control
    • Extent to which a small # of corps control most of the sales. Merging, buyouts.
      • Top 4 beef processing firms control over 80% of market
      • Pork: top 4 control over 2/3 of market
      • Corn: top 2 control over 1/2 of market
    • Those firms have power to influence how food is produced and who produces it

1950-2000 production on US farms doubled. US Agriculture is the most efficient in the world.

Some examples of external costs

  • Animal welfare
  • Environmental degradation from chemicals (pesticides, fertilizers)
      • Dead zones
      • Algal blooms

    Fertilizer can reduce soil fertility in long run

  • Pesticide exposure to animals and humans
  • Loss of biodiversity
    • Irish potato famine: only one type of potato, wiped out by a pathogen
  • Climate change from greenhouse gas emissions

Alternatives to Industrial Agriculture

What is sustainable ag? Meet current needs while not hindering future needs.

  • Economically viable
  • Ecologically sound
    • Native plants, recycling organic waste to enhance soil fertility
    • Resilient to droughts, pests (diversify, build healthy soil)
  • Socially just
  • Willing to use technology where appropriate

An Introduction to the US Food System, Week 1: Introduction to Food Systems, Equity and the Environment

“If you eat, you’re involved in agriculture.” – Wendell Berry

Here are my notes from week 1 of the free course I’m taking from Johns Hopkins on the US food system. So far I’m really enjoying it! These notes aren’t proofed or reorganized, just dumped here from Evernote for your educational pleasure. I hope you learn something; I know I did, and will be expanding upon some of these points in later posts.

The Vicious Spiral

Poverty – Population growth – Environmental degradation (PPE spiral)
  • Extreme poverty in the world is decreasing
  • Projected population growth mostly in developing nations
    • high: sub-saharan africa, bolivia, afghanistan, pakistan
    • Low: canada, brazil, most of europe, russia
  • Hunger declining but still too high
    • Most in Asia/Pacific,then sub-Saharan Africa
    • 1 billion of 7 billion total people are undernourished
    • Food prices spikes due to fuel prices going up, more crops used for ethanol

Equity and Global Ecological Footprints

Global pop: 7bil as of 10/11
  • 2bil overweight or obese
  • 1bil undernourished

Resource extraction increasing in emerging economies; 75% of pop live in countries where resource extraction > resource capital

Water quality/quantity:

  • Extreme scarcity in sub-Saharan, India, Nepal, SE Asia, Lat Am highlands
  • Chemical pollution bad in US, China
  • Dead zones from excess fertilizer: poultry production belt (NC, deep south), Europe’s concentrated livestock farming
Degradation of soil:
  • US farm belt (MS valley) very degraded
  • Iowa, for ex, loses soil at unsustainable rate–some areas >100T of soil per acre. Rich, fertile topsoil being lost to industrial farming techniques/overcultivation
    • Soil carried down MS river and lost at sea

Biodiversity:

  • Same area of soil degradation in N Amer shows high loss of biodiversity
    • Focus on corn, soybeans
  • Sub saharan, latin america bad
  • Industrialized countries w/ 15% pop used 50% fossil fuel, mineral resources; developing countries increased fossil fuel use by 40% in last 10 years
Biocapacity: capacity of ecosystems to produce useful biological materials and absorb human-generated CO2

Biologically productive land: cropland, grazing land, forest, fishing ground. Declining

Most of world at margins of using more biocapacity than is being replenished. In 2007: 151% Earth’s biocapacity used. Some countries ok: Lat Am, Canada, Russia

Diet, Food Production, and Global Health

Double burden of disease: healthcare systems of low/middle income countries overwhelmed by same old communicable diseases plus new chronic diseases from diet/less activity. Obesity has doubled globally since 1980. Diabetes type 2, cancers, heart disease, stroke. 80% of type 2 diabetes is in developing countries.

Undernourished mostly in sub-Saharan Africa, India, Mongolia, even China.

Food distribution:

  • US produces and uses vast majority of corn
  • Europe most wheat
  • US/Europe most meat, dairy, way more than India/China
  • US consumes 800kg grain per capita per year. Compare to 400 Italy, 200 China. Most of our grain goes to feeding livestock.
    • 700kg grain = 100kg beef
    • 650kg grain = 100kg pork
    • 260kg grain = 100kg poultry
    • 1000kg water = 1kg grain! So 700,000 kg water = 100kg beef; 7000kg water = 1kg beef

Federal subsidies: meat and dairy 73.8% of all subsidies. Fruit and veg .37% 

US meat consumption since 1961 increased 70%. 223lbs per person per year. Global demand for meat should double from 1990-2020. Global consumption since 1961: 82% increase. FDA says we don’t need all that protein and meat. US men consuming 170% of recommended protein; women 127%. Lot of room to reduce consumption.

Intergenerational equity and Food production impacts

  • Rapid land and soil degradation
  • Water table lowering
  • Antibiotic overuse – drug resistant bacteria
  • Fish stock depletion and more factory farmed fish
  • Loss of biodiversity
  • Climate disruption
Industrialized agriculture: started in 19th C for efficiency, speed. Monocropping, pesticides, fertilizer, water.
  • Fertilizer overuse = nitrogen/phosphorus pollution
  • High use of non-renewable resources and reliance on fossil fuels
  • Agricultural subsidies
  • Artificially inexpensive fuel and water
  • Hidden costs of food = externalities
Production needs quality soil and good rainfall but that’s unevenly distributed.
  • 2/3 water use worldwide is for irrigation
  • Irrigated land produces most crops, and amount of irrigated land growing

Chemicals

  • 220million metric tons of fertilizer used per year globally in 2020
    • Most chemicals not tested
    • Crops only absorb 1/3 to 1/2 of applied nitrogen
  • 6mil metric tons of pesticides used per year globally
    • chemicals enter food, air, water stream and could give us cancer
    • 1 billion lbs pesticide per year in US
      • that’s 20% global production for 4% global population
    • Roundup resistance (glycophosphate). At least 10 species of weeds now.
      • Monsanto controls 96% soybean market w/ Roundup resistant soybean seeds

Energy use

  • 1kcal output requires 3kcal input on avg farm
  • Feedlot cattle: 1kcal output requires 35kcal input!
  • Over 80% US energy consumption for food production (2002)
  • Most greenhouse gases from meat (30%); processed foods/snacks (25%); dairy (18%); cereals & fruit/veg 11%; chicken/eggs/fish 10%

Industrial agriculture and biodiversity

  • Current rate of loss 1000 species a year!
  • vs Paleolithic rate of 1-2 per year
  • Amazon, 2000-2005, deforestation: 60% for cattle farming, 33% small-scale agriculture, 1% large-scale agriculture
    • 1% has ballooned in recent years due to soy production
    • Also sugar cane, maize production
    • Soybeans here predominantly shipped to China to feed hogs, essentially shipping water to china in the form of soybeans
  • Threat to food supply: monocropping = more susceptible to disease, drought, pests
    • Industrial animal farming = loss of genetic biodiversity in livestock
    • Species go extinct
    • Spread of pathogens (west nile, dengue)
    • New pathogens emerge
    • Balance of species controls pests (why crop rotation is used)

The role of food animal production

1/32 of the Earth’s surface suitable for raising food. Must raise food for 7bil people.

Meat production inefficient use of grain, water, land, but accounts for 70% farmland, 30% Earth’s surface, 40% grain grown globally

  • 7% global water for grain for livestock
  • 70% herbicide and 37% pesticide in agriculture used for livestock feed
  • half corn grown in US used for animal feed (1% for human feed as actual corn)
  • Grain use ahead of production; global stocks decline (China became a grain importer) (450mil hogs grown and consumed each year in china)
  • Africa and Middle East require more grain
  • Ethanol production the major threat to availability of grains for human consumption since late 2005 (largely driven by subsidies)

Industrial food animal production:

  • one corp controls everything from hatching to slaughter.
  • animals raised in CAFOs
  • feed controlled by corp, not contract grower
  • grower is left with waste and carcasses, paid at end of cycle by weight of animals
  • livestock outnumber humans 5:1 in US
    • 2002 10bil animals slaughtered for food in US
    • 93% chickens worldwide
    • 20% of worlds animals consumed in US
    • 5 tons waste per capita
  • CAFO vs public health
    • antibiotics = resistant bacteria
    • emergence of new foodborne pathogens
    • chemicals enter foodchain through diets of animals
    • CAFO ruins communities
    • health threats apparent in CAFO neighbors, workers (asthma, injuries)
    • climate change
      • 18% greenhouse gas production worldwide, more than anything incl transportation
      • 37% methane emissions (20x worse than CO2)
      • 65% NO2 emissions (286x worse than CO2, and lasts 114yrs in atm). FERTILIZERS.
  • Precautionary principle: if something is suspected of endangering humans, the proponent of the activity, not the public, should bear burden of proof
  • How to feed everyone sustainably?
    • small farms currently support 2bil people globally; improve biodiversity and soil quality; decrease poverty
    • need to advance technologies and make them free
    • govt investment
    • invest in women farmers
    • infrastructure improvements: roads, storage facilities, refrigeration, surplus mgmt
    • diet: can’t sustain meat consumption increase, but need access to iron- and protein-rich meat sources
    • resilient food system: elasticity, recoverability, buoyancy

 Reading: Food: The growing problem

http://www.nature.com/news/2010/100728/full/466546a.html

  • At least 30% of global food is wasted; people are too poor to buy it. Highest rates of hunger in Sub-Saharan Africa; most undernourished in Asia
  • Percent hungry dropped for decades, but 2008 food price crisis reversed trend
  • Available calories per person has increased (family size decreasing, pop growth should plateau in 2050), so we will be able to support higher pop, but water is limiting resource
  • Some studies say we’ll have enough land by converting land farmland in Lat Am and Afr without hurting forests, protected areas, urbanization. But others say we should intensify existing farms
  • Sustainable intensification: doing more with less, improving techniques, less water, less chemicals. Need more public investment in farming practices.

Free online course: An Introduction to the U.S. Food System

Yesterday I began a free online course from the Johns Hopkins Bloomberg School of Public Health through their OpenCourseWare program. It’s a 6-week, at your pace course called An Introduction to the U.S. Food System. Each week’s module contains video lectures, related readings, and a quiz. I’m halfway through the first module’s lectures, and I am very pleased with the course format and the information delivered thus far. It feels like a serious course, not something quickly thrown together and dumbed down for the masses. Here is the list of weekly modules:

  • Week 1: Introduction to Food Systems, Equity and the Environment
  • Week 2: Food Systems, Food Security and Public Health
  • Week 3: Public Health and Environmental Implications of Industrial Models of Food Production
  • Week 4: Food and Farm Policy
  • Week 5: Alternative Approaches to Food Production
  • Week 6: Diet, Food Environments, and Food Access

I’ll post interesting tidbits here, but it’s not too late if you want to sign up yourself! Click here to go to the Coursera site.