The Symptoms of Too Much Fiber in a Dog's Diet

Fiber is an important element in a dog's diet, as it promotes gastrointestinal health and encourages maintenance of a healthy weight. According to the National Academies, an adult dog's diet should include between 2.5 and 4.5 percent fiber. Although a high-fiber diet will have a variety of positive effects on the dog's health, too much fiber in the dog's diet can cause negative effects.

  1. Loose Stool

    • According to AmericanChronicle.com, fiber absorbs water as it moves through the intestinal tract. As the fiber becomes formed into stool, it will also carry water with it. As a result, the stool is able to move more smoothly along the intestinal tract. When too much fiber is consumed, the stool carries a significant amount of water with it. In many cases, the stool becomes so filled with water that it is no longer formed. The dog will begin to have loose stools or diarrhea. It will likely have bowel movements on a much more frequent basis, possibly even moving its bowels several times in one day.

    Gas

    • Similarly to humans, all dogs pass a moderate amount of gas every day. Gas is a product of digestion. As healthy intestinal bacteria develops and grows along the intestinal tract, the gas quietly builds up in the dog's intestines. When fiber is consumed, it stimulates the action of the intestinal system. When excess fiber is consumed, it often creates an excess amount of gas. Although this gas is relatively harmless, it can be uncomfortable and unpleasant for the dog and its owners. According to VetInfo.com, decreasing the daily intake of fiber and increasing the dog's daily amount of exercise should control the flatulence.

    Malnutrition/Dehydration

    • Due to their natural tendency toward a carnivorous diet, dogs have a much shorter digestive tract than humans. When too much fiber is present, it can cause excess bulk in the digestive tract. The intestines will be unable to absorb the required nutrients, resulting in malnutrition. Signs of malnutrition in dogs include weight loss, sunken eyes, fatigue, loss of energy, weakness and hair loss. Additionally, frequent bouts of diarrhea may cause the dog to become dehydrated. Signs of dehydration include dry mouth, dry skin, loss of skin elasticity, sunken eyes and unusual fatigue.