When is a substance a food and when is it a drug? That may sound like a simple question but the answer can be complicated. Suppose you take some rice, inoculate it with a type of yeast, let it...
Maca is a cruciferous plant, in the same family as broccoli and cabbage. However, in this case it is the root not the leaves that are eaten. The plant is an unusual one, cultivated only at high...
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