Drink ginger tea and include ginger in your meals when you can. Ginger calms your gastrointestinal tract, flattening out any you may be having. Avoid eating any large meals that may slow down your digestive tract and make you more likely to have bloating; eat smaller, more frequent meals and snacks. Space them out by about two or three hours, Fox News Magazine suggests. Eat more potassium-rich foods like avocados, bananas and mangoes. Potassium is a diuretic, so it will help reduce water retention. Papaya also has a lot of potassium and has been found to eliminate stomach gas.