Have any supplements been studied for psoriatic arthritis?

The efficacy of different supplements for improving symptoms or disease activity is unclear. There have been some pilot trials, but most of them have been limited by a small sample size, short duration, and/or lack of appropriate blinding.

The following supplements have been studied in preliminary trials for psoriatic arthritis:^[1]

• Vitamin D
• Omega-3 fatty acids
• Primrose oil
• Gamma linolenic acid
• Coenzyme Q10, vitamin E, and selenium aspartate (in combination)
• Tripterygium wilfordii (i.e., thunder god vine)
• Paeony
• Curcumin