Exercises like walking and swimming can strengthen your gut muscles and improve gastrointestinal motility.
Eating low acid causing healthy and fresh foods seasoned with digestive herbs is good for your gut health. It is best to avoid highly spicy, over fried, and over-processed foods as are available readily in the markets.
Gluten rich foods should also be avoided. Diets should consist of simple and healthily cooked foods as far as possible.
Alcohol, nicotine, and caffeine should be cut down absolutely especially if you are prone to acidity. It is not good to pop in the OTC antacids now and then as these may cause several side effects. Their consumption should be limited and based on medical advice.