To avoid excessive protein in your dog's diet while helping him gain weight, consider adding sweet potato and pumpkin to his food. Boosting their diet with fat and fiber will help your dog's digestion along with weight gain. You can buy canned sweet potato and canned pumpkin from your local grocery store.
How can I fatten up my weak puppy?
When the mom's unable or unwilling to feed all her puppies, you can fatten up the runts yourself.1Start feeding extra food to the runt while he's still nursing. ... 2Feed the runt separately from his siblings. ... 3Buy a high-calorie nutrition gel.
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