Everyone with irritable bowel syndrome is different, but doctors recommend either a gluten-free diet or foods that are low in fermentable oligosaccharides, disaccharides, monosaccharides and polyols, or FODMAP, claims About.com. Foods on the low-FODMAP list include bananas, oranges, coconut milk, carrots and chicken.
Food allergies may also cause irritable bowel syndrome, so individuals are urged to consult with a doctor about allergies. Many patients who suffer from irritable bowel syndrome find relief by trying a diet that eliminates gluten, explains About.com. Before a person goes gluten-free, it is recommended that he is tested for celiac disease. Those on a gluten-free diet should avoid foods with rye, barley and wheat, including byproducts of these grains.
The FODMAP diet is the only diet supported by research, as of 2015, that is effective for irritable bowel syndrome, according to About.com. If a person attempts this diet, it is recommended that he works with a nutritionist, as it can be difficult to meet nutrition recommendations. There are many foods that are appropriate for this diet, including fruits such as grapes, kiwi and strawberries. Sweeteners, such as brown sugar, and dairy products, such as butter and lactose-free milk, are also allowed. Many vegetables are appropriate for this diet as are protein sources such as beef, eggs, pork and tofu. Grains such as oats and spelt can also be eaten.