There is a divided opinion on what foods to eat to treat diarrhea, but most experts recommend eating solid foods as soon as possible, according to NHS Choices. Eating light foods without fats and spices such as rice, soup, bananas, potatoes and boiled vegetables can help to cure diarrhea.
Eating thicker foods such as oatmeal and applesauce can help to cure diarrhea, notes Everyday Health. Other helpful foods include bland items such as pretzels, toast, plain crackers, and baked chicken without fat or skin. Chronic diarrhea requires the BRAT diet, according to the International Foundation for Functional Gastrointestinal Disorders. BRAT stands for banana, rice, applesauce and toast. Although the BRAT diet may be boring and less nutritional, it slows the frequency of bowel movements that cause diarrhea.