A dietary divide: Global trends in lactose intolerance

Did you know that approximately 65% of adults worldwide are lactose intolerant? This widespread condition arises from a lactase deficiency, the enzyme necessary to digest lactose, the sugar found in dairy products.

According to Britannica, Asia experiences the highest prevalence of lactose intolerance, with 70–100% of the population in East Asian countries affected. In South Korea, nearly the entire population faces challenges digesting dairy products.

Africa exhibits a similar trend, with nations like Ghana and Malawi reporting nearly universal lactose intolerance. These figures highlight how genetic and dietary history shape digestive health across different regions.

In stark contrast, Northern and Central Europe record some of the lowest rates of lactose intolerance, with only about 5% of the population affected. This disparity is linked to genetic adaptations over generations in regions with a strong history of dairy farming, enabling better digestion of lactose.

Fortunately, the growing availability of lactose-free and plant-based alternatives provides many options for those managing lactose intolerance. As awareness increases, so too does the accessibility of dietary solutions that cater to this common global condition.