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Healthy Dogs

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Senior Dog Food: Meeting Aging Canines’ Nutritional Needs

Experts give advice on caring for your senior dog’s nutritional needs.
WebMD Pet Health Feature
Reviewed by Audrey Cook, BVM&S

 If your dog is getting older and slower, you may be worried about how much weight she has gained. Or maybe you have a dog that once chowed down with gusto, but now seems to have lost interest in food.

When a beloved pet ages, its eating habits and dietary needs can change. WebMD talked with two veterinarians to learn more about the challenges of feeding a senior dog.

At what age is a dog considered senior or geriatric?

“It really depends on the breed and body weight,” says Fred Metzger, DVM, Diplomate ABVP. “Large and giant breeds age faster than smaller dogs.”

Metzger -- who owns Metzger Animal Hospital in State College, Pa. and is an adjunct professor at Penn State University -- tells WebMD that in addition to breed making a difference, overweight dogs also age faster than lean dogs.

As a rule of thumb, dogs are considered older when they’ve reached half of their life expectancy, says Mark Nunez, DVM, president of the California Veterinary Medical Association from 2009-2010 and owner of a veterinary practice in Van Nuys, Calif.

In general, “little dogs live to about 15 to 20 years of age, while bigger dogs live to about 12 to15 years.," Nunez says. Bigger dogs are considered older at around six years, and smaller dogs become older at around eight or nine.

Do senior dogs have special nutritional needs?

"Seniors and geriatrics generally need lower-calorie diets to help prevent obesity -- a huge problem in seniors -- and higher-fiber diets to improve gastrointestinal health,” Metzger says.

“Probably the most important thing for a geriatric dog is that their energy requirement gets lower,” Nunez says. With a slower metabolic rate, older dogs are more likely to become overweight or obese.

Many dog food companies now offer senior dog food formulations, which Nunez recommends as an age-appropriate diet for older pets because they’re lower in calories.

If possible, owners should feed their pets foods that are suitable to their stage in life. But some owners have more than one dog and would prefer to buy just one type of food.

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