How Human Life Works on Instagram: "Farts differ mainly because of what’s happening in your digestive system and the types of gases being produced. Most gas comes from swallowed air or from bacteria breaking down food in the gut, releasing gases like hydrogen, methane, and carbon dioxide. When digestion is smooth, gas tends to pass quietly and without much odor. The type of food you eat, how fast you eat, and your gut bacteria all affect how gas behaves. Sulfur-containing foods can lead to stron