9. Tart Cherries
Tart cherries, or their juice, can be a real boon to people with chronic knee pain. Cherries get their vibrant red color from plant chemicals called anthocyanins, which can settle down that agonizing inflammation.
Tart cherries have also been found in studies to reduce flare-ups in people with gout, a type of arthritis that causes knee pain due to hard crystals that form in the joints.