Flatulence in dogs might be the butt of many jokes, but for pet owners, persistent gas can be a sign that something isn’t quite right. While occasional passing gas is completely normal, frequent or particularly foul-smelling flatulence can point to dietary issues, digestive problems, or underlying health conditions. What causes flatulence in dogs? Flatulence is caused by excess gas accumulating in the gastrointestinal tract. This gas can come from: Swallowed air (aerophagia): Dogs that eat quickly, are anxious eaters, or are brachycephalic (short-nosed breeds) such as Bulldogs, Pugs, and Boxers tend to gulp air while eating. Digestion: As food breaks down, gases are naturally produced. Gut bacteria: Bacteria in the colon ferment undigested food, producing gas, sometimes containing hydrogen sulphide, which causes that particularly foul smell. Several factors can increase gas production: Dietary fibre: Ingredients like peas, beans, soybeans, psyllium, and oat bran are harder to digest and are fermented by gut bacteria. Dairy products: ...