Low-quality ingredients or diets made with lots of fermentable fiber tend to cause a lot of pet gas. Any ingredient that isn’t absorbed in the small intestine will make its way into the large intestine, which is home to masses of bacteria that use this material as food and produce gas as byproduct. Cutting back on the amount of food these bacteria receive will reduce the amount of gas that is produced.
Look at the ingredients used to make your pet’s food. A high-quality diet will have one or more animal-based protein sources (meat, fish or eggs) at the top of the ingredient list, and most of the ingredients should sound like something you’d eat. Avoid diets that contain a lot of fermentable fiber including chicory, inulin, fructooligosacharides, pectins, psyllium, plant gums, oats, barley, beet pulp, fruits and legumes.
Additionally, some pet foods are designed to be highly digestible, which by definition means that less material will make it to the large intestine. Look for the words “highly digestible” or “low residue” on the label. If you can’t find an appropriate diet at the pet supply store, talk to your veterinarian about products that are available by prescription only.