Lactose is a natural sugar found in milk and dairy products. It’s a disaccharide composed of two simpler sugars: glucose and galactose. It plays a crucial role in the nutrition of mammals, including humans, as it provides a readily available source of energy. Here’s a comprehensive overview . It is primarily found in mammalian milk, including cow’s milk, goat’s milk, sheep’s milk, and human breast milk.Dairy products such as milk, yogurt, cheese, ice cream, and butter contain varying amounts of lactose.

In the small intestine, It is broken down into its component sugars, glucose and galactose, by the enzyme . Glucose and galactose are then absorbed into the bloodstream through the intestinal wall and used as a source of energy by the body.   It intolerance is a condition characterized by the inability to digest properly due to insufficient levels of the enzyme .Common symptoms of intolerance include bloating, abdominal cramps, flatulence, diarrhea, and nausea, which typically occur after consuming lactose-containing foods or beverages. intolerance is more common in certain populations, particularly among individuals of Asian, African, Hispanic, and Native American descent.

The prevalence of intolerance varies widely depending on factors such as genetic predisposition, age, and cultural practices .Individuals with intolerance can manage their symptoms by limiting or avoiding -containing foods and beverages. enzyme supplements are available over-the-counter and can help improve lactose digestion in individuals with intolerance.