Can diet control Crohn's disease?

No special diet has been proven effective for preventing or treating this disease. Some people find their symptoms are made worse by milk, alcohol, hot spices, or fiber. People are encouraged to follow a nutritious diet and avoid any foods that seem to worsen symptoms. But there are no consistent rules.

People should take vitamin supplements only on their doctor's advice.

source: http://digestive.niddk.nih.gov/ddiseases/pubs/crohns/index.htm