Nutrition: more than the sum of its parts
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چکیده
Micronutrients are big business. over the past century, scientists have established the ingredients of a healthy human diet, which should include very small amounts of 10 or so trace elements and 13 organic vitamins. the refinement, packaging and sale of these dietary ‘supplements’ has given rise to a vast industry, founded on the principle that a little more of what is good for you can not be bad. this approach has even been successful for improving the health of peo ple in regions in which micronutrients are scarce in the diet. However, evidence for the efficacy of micronutrient supplements in general, even to alleviate the effects of poverty, has been elusive.
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