Shi tzu puppies need a special food in the intense and crucial growth phase during growth bones and muscles need special nutrients to become strong and healthy the immune system needs a special boost to make sure the puppy grows into a strong and resistant adult dog the shih tzu is one of the smallest dogs in the world its tiny size makes it a popular companion and often means that it lives mainly indoors the shih tzu stands out as a robust friendly and independent dog with excellent hear