"Lactose tolerance" refers to the ability of a person's body to digest lactose, which is a natural sugar found in milk and dairy products. People who are lactose tolerant have an enzyme called lactase in their bodies, which helps break down lactose and allows them to consume these products without experiencing digestive issues. On the other hand, those who are lactose intolerant may lack enough lactase and may experience symptoms like bloating, gas, and diarrhea when consuming dairy products.
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