These can ease gastroenteritis symptoms. It may be hard to hold food down, but you can get fluids, calories, vital minerals (electrolytes), and nutrition from fruit juice, sports drinks, caffeine-free soft drinks, or broth. When you feel ready to try solid food, start with bland things like rice, potatoes, bread, applesauce, or bananas. Avoid fatty or sugary foods, dairy, caffeine, and alcohol until you’re better. They may make you feel worse.