Why Some of Us Can’t Drink Milk — The Genetics of Lactose Intolerance

Milk, no surprise, is pretty nutritious. It contains proteins, carbohydrates, micronutrients, and plenty of calcium. But there are some of us who cannot drink milk without experiencing abdominal cramps, bloating, and diarrhea. In fact, 65 percent of the world’s adult population suffers from lactose intolerance or a reduced ability to digest lactose, a sugar found in milk. Like many other characteristics, lactose intolerance is hereditary in most cases, which means that we inherit the gene responsible for the condition from our parents.

In this article, we have discussed the connection of lactose intolerance and genetics, as well as have listed a few foods that you can use as a substitute for different dairy products.