Uric acid is a natural waste product that is produced by the body during the breakdown of purines, which are found in many foods. 

While some uric acid is necessary for the body to function properly, excess amounts can lead to a buildup of uric acid crystals in the joints, causing painful inflammation and swelling that is characteristic of gout. 

In addition to gout, high levels of uric acid have been linked to other health conditions such as high blood pressure, kidney disease, and heart disease.