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How common is lactose intolerance?

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Just over one-third of Americans can’t digest a certain sugar in milk and milk products called lactose.

The condition isn’t harmful, but it can be uncomfortable. There’s no cure, but you can manage it by watching how much milk or milk products you drink or eat.

Being lactose intolerant is not the same as being allergic to milk.

From: What Is Lactose Intolerance? WebMD Medical Reference

SOURCES:

Cleveland Clinic: “Lactose Intolerance.”

Mayo Clinic: “Lactose intolerance.”

Johns Hopkins Medicine: “Lactose intolerance.”

National Institutes of Health: “Lactose intolerance.”

National Institutes of Health:  “Evolution of lactase persistence: an example of human niche construction.”

Reviewed by Melinda Ratini on May 08, 2019

SOURCES:

Cleveland Clinic: “Lactose Intolerance.”

Mayo Clinic: “Lactose intolerance.”

Johns Hopkins Medicine: “Lactose intolerance.”

National Institutes of Health: “Lactose intolerance.”

National Institutes of Health:  “Evolution of lactase persistence: an example of human niche construction.”

Reviewed by Melinda Ratini on May 08, 2019

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What is lactose?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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