Milk allergies and intolerance are often genetic. By the way, the two worst offenders i ever met when talking about allergies were around the same age (they sh

Milk allergies and intolerance are often genetic. By the way, the two worst offenders i ever met when talking about allergies were around the same age (they should be in their 60s now) and both are Distilben babies. And they were scrawny, but it wasn't by choice, they just couldn't eat most fats. Nothing to do with nurture in their case.