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Uric Acid Blood Test: Gout & Kidney Stone Risk Explained

Uric acid is a waste product formed when the body breaks down purines — compounds found in certain foods and body cells. Most is dissolved in blood, filtered by the kidneys, and excreted in urine. High levels can crystallize in joints, causing gout, or in the kidneys, causing kidney stones.

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Normal Range

3.4 – 7.0 mg/dL (men), 2.4 – 6.0 mg/dL (women)

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Unit

mg/dL

What Your Results Mean

Normal

Normal uric acid levels indicate effective kidney filtration and healthy purine metabolism, with low risk of gout or uric acid kidney stones.

High

High uric acid (hyperuricemia) can lead to gout — a painful form of arthritis where crystals deposit in joints. It is also linked to kidney stones, kidney disease, and cardiovascular risk.

Low

Low uric acid is rare and may indicate liver or kidney disease, or low purine intake. It is generally not a clinical concern.

Frequently Asked Questions

What is a normal uric acid level? expand_more
Normal uric acid is 3.4–7.0 mg/dL for men and 2.4–6.0 mg/dL for women. Gout risk increases significantly above 7 mg/dL.
What foods increase uric acid? expand_more
Red meat, organ meats, shellfish, sardines, anchovies, beer, and high-fructose corn syrup all significantly raise uric acid levels.
How can I lower uric acid naturally? expand_more
Stay well hydrated, reduce red meat and shellfish, limit alcohol (especially beer), avoid high-fructose foods, maintain a healthy weight, and increase vitamin C intake.
Does high uric acid always cause gout? expand_more
No — many people with high uric acid never develop gout. Gout attacks occur when crystals form and trigger an immune response, which doesn't happen in everyone with elevated levels.
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