Rheumatoid Arthritis is an inflammatory disease that affects the lining of the joints, which produces joint inflammation. Glutathione may help control the disease and alleviate the symptoms. Rheumatoid Arthritis progresses with age; glutathione neutralizes free radicals, which lessens the damage to the muscles and tissues of the joints. Glutathione is anti-inflammatory meaning it will help control joint inflammation.

http://pure-healing.net/2012/11/12/five-benefits-of-glutathione-in-rheumatoid-arthritis/