Frontiers The emerging role of oxidative stress in inflammatory bowel disease Natural approaches for the management of ulcerative colitis: evidence of preclinical and clinical investigations Natural Products and Bioprospecting Springer Nature Link The human body is under oxidative stress from a variety of sources at all times. To combat this stress and damage the body utilizes antioxidants of all different varieties. Glutathione is a Glutathione's role in preventing and treating inflammatory bowel disease ( IBD)