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
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
“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.