The Shih Tzu's ideal weight is between 4.5 to 7.3 kg (10 to 16 lbs). My 6 months puppy is 11.7 lbs.

The name translates as Lion Dog, so named because the dog was bred to resemble "the lion as depicted in traditional oriental art,"such as the Chinese guardian lions. The Shih Tzu is also often known as the "Xi Shi quan", based on the name of Xi Shi, regarded as the most beautiful woman of ancient … Read more

The problem might be the food. If he is eating an artificial diet. Try to make him a diet of Fresh food. Fresh chicken and turkey and beef. Fresh raw vegetables and fruits. Fresh brown rice and oatmeal. Fresh yogurt, eggs, and cottage cheese. This is not "people food." Calling real food "people food" makes … Read more