What can dogs eat to gain weight?

Firstly, we need to find out why the dog is not growing fat. If there is something wrong with the body, such as worms in the stomach or a poor digestive system, we need to prescribe the right medicine. If the dog is simply not gaining weight, the owner can work on the diet and make nutritious food for the dog, such as chicken breast, beef, etc. But be careful to control the weight, it is easy to get sick if you are too fat.