I have Crohn's disease and cannot tolerate fruits, vegetables, or vitamins. I would like some advice on eating right when I am not able to eat a lot of healthy things.

Nanette, Maryland

I'm glad you've brought this up because there is a lot you can do. Crohn's disease is an inflammation that can occur anywhere along the length of the entire gastrointestinal tract; the most common sites are the ileum (the last portion of the small intestine) and the colon. Since specific intestinal regions are responsible for the absorption of specific nutrients — and since each patient with Crohn's disease has different patterns of illness — it would be extremely helpful to know which portion of your digestive tract is involved. That way, if you are at risk for particular nutritional deficiencies, you can target those nutrients by eating foods that are rich in them or by taking supplements. So ask your doctor to be specific about which part or parts of your intestines are affected by your condition and what that means in terms of the nutrients you may be lacking.

Many patients with Crohn's disease cannot tolerate roughage, including many fruits and vegetables. Cooked fruits and vegetables, however, are generally more easily digested, but don't overcook them, because you'll lose many important nutrients and vitamins. Further, different patients handle some produce better than others, so it's helpful to keep a food diary in which you note your reactions to specific fruits and vegetables. Regarding vitamin supplements, it's worth trying different formulations, including liquid ones, which may be easier to digest. Also, iron is a nutrient that has many digestive side effects, so try supplements without iron and see how you fare. (You can get the iron you need through iron-rich foods, including red meats, since most patients with Crohn's disease can readily handle meat.) Another suggestion: Consult a nutritionist to devise a well-balanced diet that meets your specific needs and tastes. It may take some trial and error, but the ultimate result — a healthy eating plan you can tolerate — is well worth the effort.

Learn more in the Everyday Health Anemia Center.