Answer:
Yes.
Dr. Jimmy Gutman, in his bestselling book "Glutathione- Your Key To Health" sums up the answer to this question here in the conclusion to Chapter 15- Digestive Diseases:
"An imbalance in the formation of free radicals and a poor supply or availability of antioxidant micronutrients may cause or encourage tissue injury in inflammatory bowel disease. Levels of glutathione and its related compounds are significantly lower in these diseases. Different antioxidants including GSH, GSH monoesters, NAC (N-acetylcysteine), Vitamin C (ascorbate), Vitamin E (tocopherol), SOD (superoxide dismutase) and others have been used with varying success. It may not be clear whether GSH loss is a cause or consequence of these inflammatory disorders, but in either case, they are positively affected by therapies that raise or sustain GSH levels. Recent research suggests that raising glutathione levels may be a novel approach to the treatment of ulcerative colitis and Crohn's disease."
For further detail, this book may be purchased here.
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