Threonine

Threonine is an essential amino acid your body cannot produce on its own and must obtain from food. A urine threonine test measures the amount of this amino acid being excreted in your urine, which can reflect your body's amino acid metabolism and nutritional status. Abnormal levels may indicate metabolic disorders, kidney dysfunction, or nutritional imbalances. This test is often used in genetic metabolic screening, particularly in newborns and individuals with suspected amino acid metabolism disorders.