Frequent intestinal gas: the real causes that almost no one explains clearly

3. Small Intestinal Bacterial Overgrowth (SIBO)

Another important factor is SIBO, where bacteria grow in parts of the intestine where they shouldn’t. These bacteria ferment food excessively, leading to increased gas production. This imbalance often causes persistent bloating and discomfort after eating.

4. Food Intolerances

Certain substances like lactose, fructose, and gluten can be difficult for some people to digest. When these aren’t properly processed, they reach the intestine and are fermented by bacteria, producing excess gas. Many people live with these intolerances for years without realizing it.

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