
Do you buy organic?
Do you know where your food comes from?
Do you know if it's grown or produced sustainably?
I hear from people the organic just isn't worth the extra cost, but are you sure?
In this short article, I will touch on the importance of organic and sustainable farming practices for the environment and our health.
Conventional vs. Organic
Industrial: post WWII vs. Traditional: 10,000 years
Nutrition: chemically made fertilizers vs. animal manure
Growth: hormones vs. natural growth cycle
Disease management: fungicides, antibiotics vs. space and minerals
Predator management: pesticides vs. rotation, bacteria and botanicals
Competition management: herbicides vs. mulching and tiling
large output vs. less output
soil depletion vs. soil maintenance
food, worker and environment contamination vs. low contamination
energy intensive vs. lower energy input
This list isn't 100% true of all conventional farms, nor of organic farms. We are seeing organic farms that have cropped up and are looking more and more conventional, but are able to stay within the boundaries of the word (and laws of) "organic".
What is more important than the definition of words are the practices of the farmer. Know where your food is coming from, and make sure you are supporting sustainable farming practices.
Now, let's cover some of the basics of farming practices.
First, fertilizers.
Fertilizers provide plants with nitrogen to grow big. Both chemical fertilizer and manure are used for this same reason, however the concentration of nitrogen is the difference.
Chemical fertilizers provide WAY more nitrogen than the plant needs, so there is a surplus. The plants leaves serve as a storage unit for this excess nitrogen, but when that storage is full, the nitrogen is left in the ground, which then allows for run off to our lakes, rivers and eventually oceans, causing havoc along the way.
The nitrogen in the leaves is stored not as nitrogen, but as nitrate. Nitrates are normal in small amounts in vegetables, but too much isn't good for the plant, nor the animals eating those leaves, whether it be you, the human consumer, or domestic animals that then get eaten eventually by the human consumer.
Why are nitrates bad again?
Nitrates turn into nitrites. Nitrites can react with hemoglobin (oxygen carrying part of the red blood cells) by oxidizing Fe2 to Fe3, which is then unable to transport oxygen. This oxygen transportation is VERY important!!!
Oh, and don't forget that nitrites can also decompose to n-
nitrosamines, which can be carcinogenic. Organic produce grown with more natural forms of fertilizer that are lower in nitrogen have lower amounts of nitrites!
Secondly, proper soil management.

Proper soil management allows for good "bugs" to remain in the soil.
Microorganisms in the soil produce enzymes that help minerals become more available to plant roots. This is one reason produce grown with proper soil management techniques have higher mineral content!
Thirdly, antioxidants.
Plants that aren't given chemicals to fight for them, have to fight for themselves. How do they do that? With their own defense system called antioxidants. Yes, the antioxidants that have been talked about for years being good for you to promote heart health, prevent some cancers, slow the aging process and just fight those nasty free radicals. Plants that are stressed by their predators may not look perfect as they get part of a leaf bit here and a hole there, but they are stronger because of it! Remember perfect looking produce isn't always the healthiest!!
Bottom Line?
I recommend choosing organic, or better yet, visiting your local farmer's market, or becoming part of a local Community Supported Agriculture (
CSA). Here is a website that can help you find a local farmer to work with: http://www.localharvest.org/csa/

Also, just talking to the farmers, asking them about their farming practices is important. If they have sustainable farming practices, then you can trust their produce is healthier for you and for the environment, with or without the organic symbol (which can be too expensive for some small farmers to be certified). Many farms allow people to visit and sometimes even take part in the growing and harvesting process. This isn't only great fun, but a wonderful learning experience for children.
Remember to wash your produce with soap and water and enjoy full flavored and highly nutritious organic food!!
Interesting articles about organic vs. conventional:
Modulation of Antioxidant Compounds in Organic vs. Conventional Fruit Journal of Agricultural and Food Chemistry 2002, 50, 5458-5462
Phytochemical Phenolics in Organically Grown Vegetables,
Mol.
Nutr. Food Res. 2005, 49, 1136-1142
Nutritional Quality of Organic vs. Conventional Fruits, Vegetables and Grains, Journal of Alternative and Complementary Medicine, 2001, 2, 161-173
Soil Fertility and Biodiversity in Organic Farming, Science 2002, 296, 5573, pp. 1694-1697
Effect of Diet Based on Foods from Conventional vs. Organic Production on Intake and Excretion of
Flavonoids and markers of
Antioxidative Defense in Humans, J.
Agric. Food Chem. 2003, 51, 5671-5675