>"Here’s the lesson: Adaptation to a new food stuff can occur quickly — in a few millenniums in this case. So if it happened with milk, why not with wheat?" Ma

>"Here’s the lesson: Adaptation to a new food stuff can occur quickly — in a few millenniums in this case. So if it happened with milk, why not with wheat?" Maybe because not being able to digest milk affected the procreation rate more than irritable bowel syndrome. If my understanding of evolution is correct, the whole idea of adaptation as used in this article is a bit misleading. We the species don't adapt to anything unless it kills us before we the individuals can procreate. The article goes on mixing up benefits and drawbacks to individuals and benefits and drawbacks to us as a species. Each individual either does or does not have the genes against specific deadly pathogens. Eating more or less wheat doesn't change that. So if someone suffers from gluten intolerance, avoiding it doesn't hurt.