This is another plug for organic foods
Over the last 50 years or so the USDA has been tracking nutrition values in some 43 different crops and the levels of nutrients have dropped in them. Specifically Vit C was down 20%, iron 15%, riboflavin 38%, and Calcium 16%, down 10% were zinc and selenium. Now this may not only be chalked up to fertilizers, but they most likely have been contributing to it.
So while it may take more land to produce organic food, you have to eat more fertilizer made food to get the same nutrition equavalience. And if this trend continues it will just get worse, not to mentions killing the environment in to process.
-Zachary
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