4.) Brat Diet – Many doctors recommend the brat diet for upset stomach conditions. The brat diet usually includes bananas, rice, applesauce and toast (no butter). Bananas are rich in minerals and fiber, and are easy to digest (just make sure you eat well ripened bananas).ne glass of red wine after a meal seems to help with digesting spicy foods as well as aids with restricting conditions like bloating, gas or acidity. Red wine is choke full of phyto-chemicals, antioxidants and anti-microbial agents, which is good for an upset stomach.