Are you sure he needs to lose weight? My Shih Tzu male is 12kg at 3 years old and he's not overweight. He's just a big boy. They don't always grow to the size we expect. There's someone on another site who has a Shih Tzu who weighs 17.25kg and he's healthy and happy.
If your dog is overweight, make sure he gets a long walk daily and keep an eye out for the amount he eats. Good Luck!
Answered by Anonymous - 10/22/2013 4:46:40 PM