Efforts to breed new varieties of crops that provide greater yield, pest resistance and climate adaptability have allowed crops to grow bigger rapidly... their ability to manufacture or uptake nutrients has not kept pace with their rapid growth.” A University of Texas study found “reliable declines”in 43 different vegetables and fruits, decreases in the amount of protein, calcium, phosphorus, iron, riboflavin (vitamin B2) and vitamin C. And in nutrients, such as magnesium, zinc and vitamins B-6 and E… average calcium levels dropped 27 %; iron levels 37 %; vitamin A levels 21 %, and vitamin C levels 30 % in 12 vegetables. scientificamerican/article/soil-depletion-and-nutrition-loss/
Posted on: Thu, 31 Jul 2014 20:40:50 +0000
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