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Digestion and Absorption Processes for Lactose

Can you describe to me the processes of digestion and absorption that occur after ingesting a lactose drink?

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Digestion in humans is the process by which food-containing nutrients such as proteins, fats, and carbohydrates is eaten and broken down to its components. These components are absorbed from the small intestine and dispersed into the circulation for use by various organs and cells. The body is thus provided with the molecules from which energy, as calories, is used for metabolism--the chemical processes by which the body builds and recycles bones, blood, muscles, nerves, and organs. These nutrients provide certain components that the body is unable to make, such as vitamins and minerals, salts, and certain essential amino acids to build proteins and fatty acids required for cell function that the body does ...