A shih tzu should eat ½ oz of high-quality dry food per pound of bodyweight, daily, when fully grown. This amount can be split up between two meals each day.
Shih Tzu puppies typically require an ounce of dry puppy food per pound of bodyweight every day, divided into three meals. They require the extra calories because they are more active than adults, and their bodies are still developing.
These guidelines may vary depending on the brand of food, so always check the manufacturer’s instructions.
As they have an underbite, shih tzus need food that is easy to pick up and chew, so it’s important to choose kibble that’s suitable for small and miniature breeds.