Your puppy will grow the fastest during the first six months of his life, so you’ll want to take special care to plan a healthy diet from the start. “Growing puppies have a lot more energy than adult dogs,” says Madan Khare, DVM. “They require more nutrients in each bite because they can’t eat in large quantities.” Here’s everything you need to know about feeding your puppy, including what food to choose, how often to feed him and how to handle treats and teething.
Look for a premium puppy food with key ingredients such as animal-based proteins (chicken, beef or lamb) for strong bones, and energy-rich fatty acids (omega-6 and omega-3 are two) for a healthy skin and coat. When perusing the products at your grocery store, don’t be tempted by the low-cost brands in the huge bags. They may contain lower-quality ingredients and artificial preservatives and may not provide your dog the with optimal nutrition he needs.
Premium puppy food, such as IAMS™ ProActive Health™ Smart Puppy, is more easily digested and has additional nutritional value, containing nutrients such as DHA that are naturally found in milk from the puppy’s mother. Discuss with your vet and read package labels to determine an appropriate formula for your dog’s breed and size.
Create a clean, quiet spot for your puppy to eat, preferably in the kitchen. Additionally, provide your pup with fresh water in a clean bowl at all times, even outdoors. You may want to place a mat beneath both bowls to easily clean up spills or crumbs and keep the area tidy.
Develop a consistent eating schedule that coordinates with yours. At first, feed your puppy three times a day (consult your vet about proper quantities). After four months, twice daily should be fine.
'Feed your puppy while you eat your breakfast, lunch and dinner,' Khare suggests. Your puppy will learn that you eat at the table and he eats from his bowl. This will deter any tendency to beg. “He'll appreciate the bonding time, too,” Khare adds.
Premium dry food, such as IAMS™ ProActive Health™, is your best bet for balanced nutrition, value and convenience. When stored properly, it’ll stay fresh longer than moist food — and it requires fewer cleanups.
For a teething puppy, you may want to mix dry food into moist food.
Use vet-recommended treats when training your dog, but with moderation. Don't offer human food, though — it may do more harm than good because it won’t have the important nutrients your pet needs.


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 |