As your dog matures, his body functions change. He might have decreased immune-system function, deterioration of skin and coat quality, and more frequent intestinal problems. So it makes sense that what a mature dog eats might also need to change.
Throughout a dog's life, a process called peroxidation occurs. This is a normal process the body uses to destroy cells that outlive their usefulness and to kill germs and parasites, but this process also can destroy or damage healthy cells. As a dog ages, the damage caused by peroxidation accumulates and, in turn, increases the risk of certain problems such as infections.
Antioxidants are naturally occurring components in the body (but also can be acquired through diet). They help maintain overall health by neutralizing the peroxidation process of cellular molecules.
Research sponsored by IAMS™ found that dogs fed a diet rich in antioxidants such as vitamin E had improved immune responses and vaccine recognition. This might be especially important for mature/senior dogs, because IAMS research has found that, as dogs age, immune responses can decrease.
Eating a complete and balanced diet with omega-3 fatty acids, such as those found in vitamin-rich fish oils, also helps rejuvenate dry skin and develop a healthy, lustrous coat.
Aging dogs might have higher numbers of unfavorable bacteria and lower numbers of beneficial bacteria in their intestines, which can result in clinical signs of gastrointestinal problems (such as diarrhea). A diet with a moderately fermentable fiber source such as beet pulp can help maintain intestinal health. Beet pulp provides energy for the cells lining the intestine and promotes proper stool formation.
Different dogs show signs of aging at different times, and much of this variation is associated with size. Larger dogs generally appear mature/senior sooner than smaller dogs. The table below can show you when your dog should start a mature diet with a food such as IAMS ProActive Health™ Mature Adult.
Dog Weight and Transition to Mature/Senior Foods
| Weight Range | Age to Begin Transition |
|---|---|
| More than 90 lbs | 5 years |
| 51 to 90 lbs | 6 years |
| 21 to 50 lbs | 7 years |
| Up to 20 lbs | 7 years |
Dogs are creatures of habit and can resist change when trying to switch their diets. It's important to completely stop feeding from the table. This is best accomplished by removing the pet from the kitchen during mealtimes. Be persistent when offering dry food. The pet may refuse to eat for several meals before deciding to give the food a try. Heating food in the microwave increases the aroma of the food and will often entice a pet to eat. Another alternative is to try mixing some wet food with the dry food, or topping it with a sauce or gravy specifically formulated for pets. Be assured that the pet eats to meet an energy need and will eventually begin to eat unless there is an underlying medical issue.
Keep in mind that the pet's stool should be small and firm. Most cases of constipation are temporary and due to dietary interruptions. Loose stools also are often temporary and can be due to dietary interruptions, as well as many other things, including an abrupt change in diet, overeating, parasites, medication, eating table scraps, viral or bacterial infections, and stress. If constipation or diarrhea persists, however, it is important to consult a veterinarian.
No. Dead grass is caused by a heavy concentration of urine—usually when a dog urinates in the same spot over and over. Try to train the dog to go to a designated, inconspicuous area of the yard. If this is impossible, try to hose the area as quickly as possible to dilute the urine. Sometimes the discoloration is due to acidic ground pH, which can usually be remedied with a lime treatment.