Bloating and visible distention aren't quite the same thing. Some data suggests that only about half of people with bloating also reported visible distention . If your body has trouble digesting certain carbohydrates, like lactose or fructose, it can lead to bloating and gas. Your gut microbiome: The balance of bacteria in your gut influences gas production and how your digestive system behaves. For people with irritable bowel syndrome, studies show that a lower-FODMAP diet can reduce bloating and distention.