There is no special diet for Crohn's disease and it's important that you eat a healthy, balanced diet. However, if you have any blockages in your bowel which cause abdominal pain, you may want to eat foods that are low in fibre. This is called a low-residue diet. When your Crohn's disease is active, your doctor may recommend that you have a liquid diet, made up of simple forms of protein, carbohydrates and fats. This is called an elemental diet. This kind of diet helps your bowel to rest and reduces inflammation. There is some evidence that fish oil supplements can help to reduce the number of flare-ups of Crohn's disease.
Attribution: BUPA