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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 |
Low-cost food might be better for your wallet, but it can be a raw deal for your dog, because he may not get the nutrition he needs. Premium foods, such as IAMS™ ProActive Health™ Smart Puppy Original , make sense both nutritionally (because of consistent, high-quality ingredients) and economically because they provide:
The investment in a premium food might initially cost more per bag, but because these high-quality formulas are high in nutrient density, your dog may need less food, which can offset the higher cost per unit of weight. On a cost-per-feeding basis, look at how much you feed each day as opposed to how much the bag costs, because nutrient and energy density will generally be lower for a low-cost food compared with premium foods.
With budget-priced formulas, the emphasis is on production and ingredient costs. Two bags of the same least-cost formulated food can have different ingredients and/or levels of ingredients. Plus, those ingredients may vary significantly in digestibility. This means, simply, that you may need to feed more just to equal the nutrition offered by a smaller amount of a premium dog food formula.
High-quality, complete, and balanced premium dog foods such as the IAMS brands are specifically designed to provide your dog with a food that has:
To determine how much food to give your dog, check the daily feeding recommendations set by the pet food manufacturer and read the label. To calculate portion sizes, divide the total daily recommended amount by the number of times (usually two for adult dogs) you plan to feed your dog.
To tell if your dog is at a healthy weight, move your hands along his sides. If you can feel his ribs, he's about right. Or, look down at him when you're directly above him. You should be able to see a waistline.
If he's gaining or losing a lot of weight, slightly decrease or increase his daily intake and weigh him in another week. If you have specific concerns about your dog's weight, talk to your veterinarian. He or she can assess your dog's needs and make a feeding recommendation.
Once you've decided on a premium formula, you have another choice to make: dry or moist. And what about biscuits?
Premium dry dog food gives you the best value and convenience, while fortifying your dog with high-quality nutrition. Premium dry foods come in a number of bag sizes and formulas suited to size, life stage, and activity level. Dry food also helps keep teeth clean, and it stays fresh for a long time if you store it properly.
Wet foods from IAMS provide 100% complete nutrition. IAMS ProActive Health Puppy Biscuits make great treats and rewards and can add taste variety to your new dog's diet.
