Starch and human diversity

Human diversity and agricultural biodiversity interact. The variation that exists between and within crops and livestock products in nutritional content is to some extent matched by — and indeed there is evidence that in some cases it has driven — genetic variation between and within the human populations that make use of them. We’ve blogged about this with regard to lactose intolerance and predisposition to iron deficiency. Now comes a study 1 linking variation among human populations in the number of copies of the amylase gene with the amount of starch in their diet 2

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