This causes bloating, gas, and pain ( 2). Once it reaches your colon, the lactose is fermented by the bacteria in your gut, forming short-chain fatty acids (SCFAs) and gas. Some people also experience an urgent need to go to the toilet, vomiting, lower belly pain, and constipation.ĭiarrhea occurs due to undigested lactose in your small intestine, which causes water to move into your digestive tract ( 2). These symptoms may appear as quickly as 30–60 minutes after eating. If not managed properly, lactose intolerance may cause severe digestive problems.
It’s caused by reduced production of the enzyme lactase in your gut. Lactose intolerance is the inability to digest lactose, the main carb in dairy. However, all lactose intolerance is characterized by a deficiency in the enzyme lactase. Several types of lactose intolerance exist, and they may be caused by different factors. However, you can develop lactose intolerance at any age, even well into adulthood ( 1). Lactose is found in breast milk, and almost everyone is born with the ability to digest it. Can you develop lactose intolerance over time? These symptoms include bloating, diarrhea, and abdominal cramps. People with lactose intolerance experience digestive problems when they consume dairy, which can negatively affect their quality of life. This condition occurs if your body doesn’t make enough of the enzyme lactase, which you need to digest lactose ( 1). It’s very common, affecting around two-thirds of the world’s adult population at minimum ( 1). Lactose intolerance is a digestive disorder caused by the inability to digest lactose, the main carbohydrate in dairy products.
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