The modern diet is rich in meat, dairy products, and seafood which can sometimes cause a build-up of uric acid. When uric acid crystals build up in tissues such as joints, muscles and skin, they can become inflamed and painful, and even lead to gout. Tart Cherry capsules contain 500 mg of tart cherry extract, plus Celery Seed and Grape Seed extracts to help support healthy uric acid levels and joint health. 90 capsules.