Milk and Asian people
CA RO | 03/09/2008Lactose intolerance is the inability to metabolize lactose, a sugar found in milk and other dairy products, because the required enzyme lactase is absent in the intestinal system or its availability is lowered.
It is estimated that 75% of adults show some decrease in lactase activity during adulthood worldwide. The frequency of decreased lactase activity ranges from nearly 5% in northern Europe to more than 90% in some Asian and African countries [1]
Primary lactose intolerance. Environmentally induced when weaning a child in non-dairy consuming societies.[3] This is found in many Asian and African cultures, where industrialized and commercial dairy products are uncommon.
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