Hi doctor ..i wanna ask about gas in stomach how can destroy it by food and lifestyle?

Depends on the cause: Since we don't digest the fiber we eat, intestinal bacteria will feed on it and make gas as a byproduct. Another reason for gas is lactose intolerance, in which one can't digest the lactose (milk sugar) he eats. Again, bacteria will feed on it. Drinking lactose-free milk solves that problem. Gas can also be due to infections in the intestines (such as giardia), or other malabsorption disorders.