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How Fat Affects Your Dog’s Performance
How Fat Affects Your Dog’s Performance-mobile

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How Fat Affects Your Dog’s Performance

Diet and Performance

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Diet plays an important role in the endurance potential of canine athletes. The Alaskan sled dog might be considered the ultimate canine athlete, sometimes pulling a sled more than 1,000 miles in subzero temperatures. Providing a well-balanced diet is essential to meet the special needs of dogs in such nutritional-stress situations. Not only should the diet fed to these dogs be high in protein, but it also should be high in fat, which serves as the major energy source for exercising muscles.

 

High Nutrient Demands

Dietary Effects on Performance
 

A high-fat diet can help muscles burn fat more efficiently. During sustained exercise, fatty-acid oxidation is the primary source of energy for the muscles. Increasing the efficiency of fat metabolism spares the body’s use of carbohydrates, and because most dogs have in excess of 10 to 50 times more energy stored in fat than in muscle glycogen (carbohydrate), this might boost the animal's exercise performance.

IAMS™ studies1 have shown that in trained sled dogs as in ordinary dogs, exercise performance was enhanced by switching from a low-fat to a high-fat diet (from 25 to 65% of calories from fat), as indicated by increased:

  • Mitochondrial volume—Increasing the volume of the muscle cell's 'power houses' increased the capacity for fatty-acid oxidation.
  • Aerobic capacity—Muscles were better equipped to utilize fatty acids for fuel because of increased ability to utilize oxygen.
  • Fatty-acid oxidation—By increasing fatty-acid utilization during exercise, more energy was released for the muscles to use.

When dogs were switched back to a low-fat diet, all of these criteria decreased to their previous values.

These results indicated that by increasing the availability of fat stores and capacity to metabolize fat for energy, a high-fat diet promotes exercise endurance in canine athletes.

1 Reynolds AJ, et al. “The effect of diet on sled dog performance, oxidative capacity, skeletal muscle microstructure, and muscle glycogen metabolism.” Recent Advances in Canine and Feline Nutritional Research: Proceedings of the 1996 IAMS International Nutrition Symposium. Carey DP, Norton SA, Bolser SM, eds. Wilmington, OH. 1996. 181–198.

  • Common Concerns About Your Dog’s Health
    Common Concerns About Your Dog’s Health mobile
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    Common Concerns About Your Dog’s Health

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    How Do I Encourage My Dog to Eat Dry Food After Eating Scraps from the Table?

    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.

     

    What Should I Do If My Dog Is Constipated or Has Loose Stools?

    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.

     

    When My Dog Urinates on the Lawn, It Kills the Grass. Should I Switch Diets?

    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.

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