A vegan diet can cure Chron's disease

Chron's disease:
" Inflammatory bowel diseases occur almost exclusively in parts of the world where the diet is high in meat and dairy foods, and are rare in countries where people still consume starch based, almost entirely vegetarian meals. Severe "allergic-type" reactions to some of those rich foods have been suspected as being the causes of these conditions."

The condition is improved/cured by consuming a vegan starchbased diet (e.g. rice, potatoes, beans, lentils) with fruits and vegetables:
http://www.drmcdougall.com/med_colitis2.html

See also: http://www.youtube.com/watch?v=RqYZ8Iu_fUc