Lactose Intolerance World Map. Its symptoms usually manifest from a few hours after consuming dairy products. Lactose intolerance occurs when your body doesn't accept lactose, a substance commonly found in dairy products such as milk and cheese. The primary raised sheep, goats, and cattle, but at least one lactose-persistence mutation likely sprung up among camel herders. The ten countries with the highest prevalence of lactose intolerance are: C'est la vie. The fact that some percentages are exact and others are provided as a range is the result of the research methodologies used by the authors of the respective studies. Lactose Intolerance World Map
The primary raised sheep, goats, and cattle, but at least one lactose-persistence mutation likely sprung up among camel herders.
Lactose intolerance in infants is caused by a mutation in the LCT gene, which results in a life-long intolerance.
Lactose Intolerance World Map Lactose intolerance occurs when your body doesn't accept lactose, a substance commonly found in dairy products such as milk and cheese. Why do African-Americans have a higher rate of lactose intolerance than people from where their ancestors largely come from? Lactose intolerance is "an impaired ability to digest lactose, a sugar found in milk and other dairy products," according to the National Institutes of Health (NIH).