Uric acid is a waste product formed when the body breaks down purines, which are natural substances found in cells and certain foods (e.g., red meat, shellfish, alcohol). Most uric acid dissolves in the blood, is filtered by the kidneys, and is excreted in urine.
Testing uric acid levels in urine provides insight into how well the body is managing purine metabolism and can help diagnose or monitor conditions such as kidney stones, gout, and metabolic disorders.