Being underweight can be a sign of several things, including poor nutrition or underlying health problems. Check with your veterinarian if you’ve noticed your pet losing weight.

Ideal: Maintaining an ideal body weight for your dog can result in both a longer life and lower vet bills.

Chunky: Being as little as 20% overweight can greatly increase the risk of your dog developing serious health problems.

Overweight: Weight gain can be a simple matter of too many calories and too little exercise, but there can also be issues with a pet’s metabolism. Check with your veterinarian before assuming.