Joint inflammation caused by rheumatoid and other forms of arthritis results in pain and stiffness. Osteoarthritis is caused by a decrease of cartilage between the bones, which causes them to rub together. Rheumatoid arthritis is caused by the inflammation of the synovial membrane, which surrounds and cushions bone endings. Eating yellow and orange fruits and green leafy vegetables help lower the risk of developing arthritis. Eating well helps up maintain a healthy weight which places less stress and strain on our joints. Regular exercise is a vital part of any arthritis treatment program, increasing strength and mobility, while reducing pain.