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Scientists Say Organic Food May Not Be Healthier For You

Hugh Pickens writes "NPR reports that although organic fruits and vegetables, grown without synthetic pesticides or fertilizer, comprise a $29 billion industry that is still growing, a new analysis of 200 peer-reviewed studies that examined differences between organic and conventional food finds scant evidence of health benefits from organic foods. 'When we began this project, we thought that there would likely be some findings that would support the superiority of organics over conventional food,' says Dr. Dena Bravata, a senior affiliate with Stanford's Center for Health Policy and co-author of the study published in the Annals of Internal Medicine. 'I think we were definitely surprised.' Some previous studies have looked at specific organic foods and found that they contain higher levels of important nutrients, such as vitamins and minerals. For example, researchers found in one study that tomatoes raised in the organic plots contained significantly higher levels of certain antioxidant compounds. But this is one study of one vegetable in one field; when the Stanford researchers looked at their broad array of studies, which included lots of different crops in different situations, they found no such broad pattern. Here's the basic reason: When it comes to their nutritional quality, vegetables vary enormously, and that's true whether they are organic or conventional. One carrot in the grocery store, for instance, may have two or three times more beta carotene than its neighbor. But that's due to all kinds of things: differences in the genetic makeup of different varieties, the ripeness of the produce when it was picked, even the weather. Variables like ripeness have a greater influence on nutrient content, so a lush peach grown with the use of pesticides could easily contain more vitamins than an unripe organic one."

5 of 497 comments (clear)

  1. Re:And? by rtfa-troll · · Score: 5, Informative

    Is anyone actually surprised by this?

    Probably; Those people who for some reason think that scientists are uninfluenced by money in research or belive that research is neutral. Most slashdotters will also be "unsurprised" for the wrong reasons. They haven't actually read up about this but want to act superior to everyone else. All those groups are wrong (especially the bit about being superior).

    This is the kind of totally stupid irrelevant research which becomes a "talking point". Without actually giving anything useful. "Organic food" is such a wide category ranging from people producing at home for themselves to massive agribiz producing in a way almost identical to the normal inorganic farmers. At the worst end of this they repeatedly crop the same area without replenishing the soil which means almost certainly worse soil nutriants than even a traditional "all chemicals" farmer who at least has a way of putting something, but not nearly everything, back to make up for what he takes out.

    However; there is one key benefit of organic farming; no matter what. The chemicals don't get dumped into the environment; pesticides; basically developed from chemical weapons at low concentration, don't get dumped and don't damage the environment around farms. That directly and indirectly improves health. The people living around the farms stay healthier. The people away from the farms where the pesticides have less reach get a less dispoiled environment which means one which is more likely to survive to keep their descendents alive. Unfortunately this effect won't be measurable directly according to who eats what. Antisocial people in good areas will be healthier. Good people in bad farming areas will be less healthy.

    If you want actual health with your food you will want to go and actually meet the people producing it. Check that they grow it till it's really ready to eat; check that you get it fresh; picked the previous day and not "looks like fresh" gas packed and 12 days decayed. Avoid like hell food from the supermarket in general and especially food from the middle of the supermarket (dried corn products etc..); if you have to shop there go for the edge (fresh unpacked). Make sure that you eat a variety of different things from different places. Make sure it's prepared in a traditional way and not according to some wierd health fad. Healthy is good; organic is good; they are just orthogonal.

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  2. Re:And? by Anonymous Coward · · Score: 5, Informative

    I don't eat organic food for some people's claim (which I didn't believe to begin with) that they are more nutritious. I eat them to avoid pesticides, growth hormones, animal antibiotics and other crap from bio-accumulating in my system.

    This study is a complete diversion and avoids dealing with the crux of the matter.

  3. Re:And? by Joce640k · · Score: 5, Informative

    Google for "Organic vs Inorganic Taste Test" then select "videos"...eg this one

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  4. Re:No surprise?? I dunno by andydouble07 · · Score: 5, Informative

    Organic food is not sprayed with synthetic pesticides. They may or may not have pesticide residues, and the synthetic stuff is generally safer.

  5. Re:No surprise?? I dunno by trout007 · · Score: 5, Informative

    Of course organic food is sprayed with pesticides. I try grow my own food as organic as possible and use pesticides all the time. Do you think magic keeps the bugs off? I just put up a sign that says "Dear bugs I'm trying to grow organic food here, please leave"?

    No the difference is we use pesticides and fertilizers that are derived from natural sources. But some of the pesticides are still hazardous if used incorrectly. Many are toxic to fish and amphibians.

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