Uric acid comes from the breakdown of purines. Purines are a group of chemicals that are in all body tissues and in many foods. Our bodies are always processing purines. Normally our bodies, especially our kidneys, can keep uric acid levels from getting too high.
When blood uric acid levels rise above 7.0 mg/dL (men) or 5.7 mg/dL (women), it’s called hyperuricemia. This happens when you make too much uric acid or your kidneys can’t get rid of normal uric acid production. Or it could be a combination of both problems. via: chicagotribune.com