Why do you always fart when you eat pumpkin? First of all, it has something to do with the composition of pumpkin. Pumpkin contains mannitol, which has the effect of opening the stool, so after taking more pumpkin, it will cause the production of gas in the intestine, and it will cause an increase in exhaust, it usually has a good effect for some patients with constipation. In addition, pumpkin also has some carbohydrates, pectin, fiber components, which can protect the mucous membrane of the intestine from the stimulation of rough food, help to stomach and eliminate food, with the role of adsorbing bacteria and toxins, thus playing a detoxifying effect.