As lactose intolerance is inherent, its prevelance varies by ethnic group. For example, while only 12\% of American Caucasians have it, its prevelance is 75\% among African Americans, 93\% among Chinese, 60\%-80\% among Ashkenazi Jews,and 100\% among American Indians. Many people do not realize that they have this condition simply because they have eaten dairy all their lives and view the symptoms of lactose intolerance as "normal".
As lactose intolerance is inherent, its prevalence varies by ethnic group. For example, while only 12\% of American Caucasians have it, its prevalence is 75\% among African Americans, 93\% among Chinese, 60\%-80\% among Ashkenazi Jews,and 100\% among American Indians. Many people do not realize that they have this condition simply because they have eaten dairy all their lives and view the symptoms of lactose intolerance as "normal".
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