Lactose Intolerant? It's Normal.

Wow, 60% of adults can't digest milk! If your ancestry is not northern European, the odds are that you can't handle lactose.

"Somewhat less than 40% of people in the world retain the ability to digest lactose after childhood. The numbers are often given as close to 0% of Native Americans, 5% of Asians, 25% of African and Caribbean peoples, 50% of Mediterranean peoples and 90% of northern Europeans."

Read the article.