Scientists have not conducted large scale, randomized controlled studies on Crohn’s and diet. What studies have been done have shown correlation between whole foods plant based diets and a protective effect against developing Crohn’s disease. A recent case study details the story of a 25 year old man with severe Crohn’s that was not responding to medication. He achieved remission and complete mucosal healing after 6 months on a whole foods plant based diet in conjunction with Remicade. The diet he followed was the one recommended by Chiba, et al.
In 2019, a 12-week prospective trial was conducted on 78 children with mild to moderate Crohn’s disease. This trial compared the effectiveness of complete enteral nutrition, or food replacement shakes, with a diet of partial enteral nutrition coupled with the Crohn’s Disease Exclusion Diet (CDED). The trial found that PEN & CDED was better tolerated among the children studied, and that both diets were effective at inducing remission by week 6 of the study.
Eating Vegan with Crohn's Disease 