In the past, veterinarians recommended diets for senior dogs largely based on the nutritional management of diseases common to the aging process. Research, however, has shown that special nutrition can help manage body-condition problems in aging dogs, such as obesity and loss of muscle mass. Senior dogs also benefit from special nutrition to help maintain bone and joint health.
Learn more about how you can help your senior dog manage common health issues associated with aging.
Senior dogs tend to gain weight, despite consuming fewer calories, due to changes in their metabolic rate. Therefore, they can benefit from eating a diet with reduced fat levels and lower caloric density than adult maintenance foods.
Recent IAMS™ research in dogs also indicates that L-carnitine — a vitamin-like compound made in the body from the amino acids found in red meats, fish, chicken and milk — can help reduce weight in overweight dogs by escorting fat into cellular mitochondria where it is turned into energy.
Protein is the building block of muscle tissues. It is important for maintenance of muscle tissues, muscle strength and mobility. Recent research conducted by The IAMS Company has shown that senior dogs that eat a higher-protein diet better maintain muscle protein stores. By providing optimal protein levels from muscle maintenance, we can help senior dogs continue being physically active.
This research is contrary to conventional opinion that senior dog foods should contain lower protein levels than adult maintenance formulas to avoid progressive decrease in kidney function. However, senior dogs fed a high-protein diet had stable renal function and a lower death rate than dogs fed a lower-protein diet.*
During the aging process, cartilage between joints often begins deteriorating. Nutritional management can help maintain healthy bones and joints and mobility in dogs in several ways:
Some pet-food manufacturers have endorsed reduced levels of calcium and phosphorus based on the belief that excesses of these minerals are harmful to the kidneys. However, research has shown that no damaging accumulation of calcium or phosphorus was found in the kidneys of older dogs fed diets containing maintenance levels of calcium and phosphorus for four years.*
* Finco, DR. “Effects of aging and dietary protein intake of uninephrectomized geriatric dogs.” American Journal of Veterinary Research; Vol. 55, No. 9. Sept. 1994.

When visiting the store, dog owners can get overwhelmed by the array of dog food options available, from dry kibble to canned wet food and more. These processed foods may not be appealing to humans, but they contain all the nutrients that dogs need to stay healthy. Like humans, dogs also need a variety of nutrients from their food, not just from meat as their main diet, but also from grains, vegetables, and fruits. This kind of balance is usually weighed by pet food labels in kibbles or wet food in grams for different types of dogs.
For optimum health, dogs need food that is tailored and customized to their life stages, starting from when they are puppies and all the way into adulthood. Puppies have completely different nutrient needs compared to adult dogs as they are still in their early stages of life. They need enough nutrients to fuel a speedy growth, especially after transitioning away from their mother's milk. Puppies require complete and balanced nutrition with protein to help build their tissues, fats or healthy skin, hair, brain, and vision, carbohydrates for energy, vitamins, minerals, and water.
The need for balanced nutrients in puppies starts with the mother during pregnancy, followed by lactation and growth. Sufficient nourishment for the mother is pivotal in enhancing the puppies’ growth inside the womb and preparing them for life after birth. Both mother and puppy should receive well-proportioned antioxidants, DHA, and prebiotics to support their health and growth as provided by the IAMS product line, which contains DHA that is essential for puppies' brain development while also supporting the mother's pregnancy and quality of milk produced.
While puppies need the primary nutrients for growth, adult dog food has a different level of complexity. Adult dog food requires the same make-up of nutrients as puppies do but tailored to their specific needs. Recent research indicates that an adult dog requires at least 10% of its daily calories from protein and at least 5.5% from fat. Adult dogs need quality protein for firm muscles and a healthy immune system. Additionally, an adult diet can contain up to 50% carbohydrates, with fiber ranging from 2.5 to 4.5%. There is no specific prescribed amount of fibre for adult dog consumption daily, however, it is still one of the most important components in dog food to address constipation and support a healthy weight.
Adult dogs in their prime also require a balance in antioxidants to reduce systemic inflammation and restore active muscles. They should receive Vitamin E and C to support their immune system, joint health, and prevent inflammation. As they grow older, they may be exposed to different diseases from diabetes to cancers, which can be prevented by polyphenols. Parents to adult dogs must acknowledge the most suitable food for their loved one that is comprised of the right amount of nutrients and can look to the IAMS line as they are formulated to support healthy bones and joint health, scientifically proven for healthy digestion with a good fibre and prebiotic blend, as well as antioxidants for a strong immune system.
Besides life stage, balanced nutrition should be adjusted to their breed, which give insight to different factors like weight, mouth size, and energy level. This will then determine the type of kibble and food given. Smaller breeds tend to be more active, requiring the same essential nutrients and prebiotics for a healthy body as well as smaller-sized kibble designed specifically for their smaller mouths. As smaller dogs relatively have a high metabolism, higher levels of protein, fat, and essential fatty acids like omega 3 and omega 6 are some of the important nutrients that should be available in their food. On the other hand, larger breeds require foods that are lower in fat and calories, contain slightly lower levels of calcium and phosphorus, and have a specific balance of calcium-to-phosphorus ratio to support stronger bones and muscles. Owners can look to products like the small breed line from IAMS, containing 7 essential nutrients to build strong muscles, support their tiny immune system while protecting their healthy skin and coat, and the product line for adults for large breeds.
Dog parents must acknowledge and understand the unique needs, life stage and characteristics in their dog to choose the right dog food so their furry ones can grow into their healthiest selves. Make sure to visit your vet regularly to check these components as well!