This prospective, randomized, double-blind, placebo-controlled trial from 2019 included 46 participants with active mild to moderate ulcerative colitis. Results found 2000 mg/day ginger supplementation can “improve disease severity index and oxidative stress.” Further symptoms such as intestinal gas, bloating and abdominal pain decreased after taking ginger.
Nikkhah-Bodaghi M, Maleki I, Agah S, Hekmatdoost A. Zingiber officinale and oxidative stress in patients with ulcerative colitis: A randomized, placebo-controlled, clinical trial. Complement Ther Med. 2019;43:1-6. doi:10.1016/j.ctim.2018.12.021