Why are more blacks lactose n tolerant than whites?

Question

is it because of the dietary changes forced upon as a result of slavery, relocating to another country, or is there another cause

Answer 1

All of african americans and native americans are born without the enzyme to digest milk all though we shouldn't drink that much anyways that gene appears more in the minorities then any other race.

Answer 2

Wow, the dude above me got me.

Answer 3

You do understand that humans are not supposed to consume any diary after childhood. Only Europeans and northern African have the genetic ability to digest milk based products. Most humans cannot produce lactase, which breaks down dairy.