The medical benefits of turmeric, a bright yellow spice, have been a part of traditional Ayurveda medicine for centuries. An osteoarthritis best turmeric supplement may be useful in reducing joint inflammation. Researchers suggest that curcumin may also prevent cancer, heart disease, and peptic ulcers. There are several supplements containing turmeric, including capsules, liquids, powders, and gummies. There may be interactions between the best turmeric supplements and certain medications or conditions, so always consult your health care provider before taking a turmeric supplement.