The alanine-glucose cycle, or the glucose-alanine cycle, is a metabolic pathway in which the liver produces glucose from amino acids. During this cycle, muscle tissue produces alanine, which is transported to the liver and converted to glucose. The glucose is then released into the bloodstream and can be used by other tissues in the body for energy.
The alanine-glucose cycle plays an important role in maintaining blood glucose levels during periods of fasting or exercise. Adequate intake of nutrients such as carbohydrates and proteins is necessary for healthy alanine-glucose cycle function.