Monday, 5 August 2013

What Are The Most Lactose Intolerant Places In The World?

I like milk. I drink it with every meal. Breakfast, lunch and dinner. Whether you can digest milk comfortably after childhood is a genetic fluke. For many people, the ability to produce lactase - the enzyme that allows the body to break down lactase, the sugar in milk - disappears after childhood, when we no longer need to survive on our mother's milk.

Lactase persistence - the gene that allows about a third of adults to drink milk without major digestive pains - tends to break down geographically, as you can see in this infographic from Nature's history of milk tolerance.

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