Gastrointestinal discomfort following the consumption of dairy milk is a common experience. The primary culprit is often related to lactose, a sugar naturally present in milk. The body’s ability to digest lactose depends on the enzyme lactase, produced in the small intestine. When lactase production is insufficient, undigested lactose ferments in the colon, leading to symptoms like bloating, gas, cramps, and diarrhea. The severity of these symptoms can vary significantly depending on the degree of lactase deficiency.
Understanding the causes of post-dairy distress is important for dietary management and overall well-being. Historically, the ability to digest lactose into adulthood is a relatively recent evolutionary adaptation, prevalent in populations with a long history of dairy farming. Individuals lacking this adaptation may experience discomfort. Identifying the cause of digestive issues following dairy consumption allows for informed choices regarding alternative milk sources or lactase enzyme supplementation. This allows individuals to enjoy dairy products comfortably and maintain a balanced diet.
