Daily supplementation with ginger root (Gan Jiang [Zingiberis Rhizomal] has been found to reduce exercise-induced pain by 25%. The anti-inflammatory action of ginger has previously been confirmed in rodents, but not in humans. American investigators conducted two studies to identify the impact of raw and heat-treated ginger supplements on muscle pain. Thirty-four volunteers were enrolled in the raw ginger study and 40 on the heat-treated ginger study. In each group, the subjects consumed capsules containing 2g of either raw or heat-treated ginger or placebo for 11 consecutive days. On Day 8 of the study, the volunteers performed resistance exercises with a heavy weight to induce moderate muscle injury. The results showed that daily ginger supplementation reduced exercise-induced pain by a moderate to large amount: 25% for raw, and 23% or heat-treated ginger, compared with placebo. (Ginger (Zingiber officinale) reduces muscle pain caused by eccentric exercise. J Pain. 2010 Sep;11(9):894-903).