These Are the 11 Heaviest Dog Breeds, So Keep the Treats to a Minimum

Just like humans, too little exercise and too much food can lead to weight gain in pooches. (Dogs! They're just like us!) However, some dog breeds are more likely to pack on the pounds than others. The heaviest dog ever reported by the Guinness Book of World Records was Zorba, an English Mastiff, who weighed an impressive 343 pounds. Your pup may not be in danger of beating Zorba's record, but if your dog is one of the fattest dog breeds (such as an English Mastiff), then you should keep an eye on their kibble consumption.

According to PetMD, dog obesity is associated with several health issues, including diabetes, heart disease, and arthritis. Even if a dog is only moderately overweight, obesity can shorten your pet's life span, so it's important to keep your pup at a healthy weight. If your four-legged friend is one the following dog breeds that tend to be on the heavier, consider long walks and games of fetch to help them keep their weight gain under control.