Lactose intolerance in adulthood is most prevalent in people of East Asian descent, with 70 to 100 percent of people affected in these communities. Lactose intolerance is also very common in people of West African, Arab, Jewish, Greek, and Italian descent.
What percentage of races are lactose intolerant?
Estimates for lactose intolerance vary by ethnicity. African American and Asian ethnicities see a 75% – 95% lactose intolerance rate, while northern Europeans have a lower rate at 18% – 26% lactose intolerance. For some people, drinking milk with their morning cereal is all the dairy they need for the day.
Why is lactose intolerance more common in certain ethnic groups?
“The most likely explanation is nomadism,” Sherman concluded. All 13 of the populations that can digest dairy yet live in areas that are primarily lactose intolerant were historically migratory groups that moved seasonally, Sherman said.