Why Are Some Ethnicities More Lactose Intolerant? An Evolutionary Perspective
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3 min read
Approximately 65% of the world's population has a reduced ability to digest lactose after infancy, but this varies significantly by ethnic and racial group. The answer to why some ethnicities are more lactose intolerant lies in a fascinating story of human evolution, genetics, and cultural practices that shaped our digestive systems over thousands of years.
