[C19fan]

Europeans developed lactose tolerance 10,000 years ago. That was a beneficial genetic mutation.

[Magic Fingers]

“Europeans developed lactose tolerance 10,000 years ago. That was a beneficial genetic mutation.”

Lactose intolerance isn’t the reason that reducing the use of dairy products can be beneficial, just as “bread intolerance” isn’t the reason that reducing the use of processed grains can be beneficial.