Farting -

Gastric acids breaking down food release carbon dioxide as a byproduct.

Certain "gas-producers" are harder to break down, including beans, onions, broccoli, cabbage, and carbonated beverages. Techniques: How to Pass Gas farting

Gut bacteria feed on undigested carbohydrates (like fiber), producing gases such as hydrogen, methane, and nitrogen. Gastric acids breaking down food release carbon dioxide

Gastric acids breaking down food release carbon dioxide as a byproduct.

Certain "gas-producers" are harder to break down, including beans, onions, broccoli, cabbage, and carbonated beverages. Techniques: How to Pass Gas

Gut bacteria feed on undigested carbohydrates (like fiber), producing gases such as hydrogen, methane, and nitrogen.