A. Gas can be caused by a number of things, however indigestion and food intolerance are usually at the top of the list. Gas can be caused by poor digestion in dogs, and when certain "bad" bacteria in the gut digest the food instead, leading to gas as a byproduct. Food intolerance can make digestion difficult as well, leading to fermentation and gas formation. Changing the diet if food intolerance is suspected to a diet free of common "problem" foods such as corn, wheat and soy may help as well as adding in some natural probiotics such as plain yogurt to the diet.
If the gas continues or worsens over time, or is causing major distress and bloating in your dog, it is best to contact your local veterinarian. Extreme gas can sometimes lead to bloat, a serious medical emergency.
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