Cats have a bad stomach, so you can prepare some health care products to regulate the stomach and feed them a little every day to promote the digestion and absorption of the intestines and relieve the cat's indigestion. Usually feed more foods rich in potassium, high in carbohydrates and moderate in protein. What does the cat eat to regulate the stomach? Cats have a bad stomach. You can prepare some health care products to regulate the stomach and feed the cat a little every day to promote the digestion and absorption of the intestine and relieve the cat's indigestion. It is also helpful to improve the cat's stomach. Usually feed foods rich in potassium, high in carbohydrates and moderate in protein, and choose foods low in fat and dietary fiber, such as potatoes, chicken breast, duck heart, duck liver, olive oil and beer yeast powder.