What causes Gas in the Digestive Tract ?
Most foods that contain carbohydrates can cause gas. In contrast, fats and proteins cause little gas. Foods that produce gas in one person may not cause gas in someone else, depending on how well individuals digest carbohydrates and the type of bacteria present in the intestines.
                
Some foods that may cause gas include
                
- beans  - vegetables such as broccoli, cauliflower, cabbage, brussels sprouts, onions, mushrooms, artichokes, and asparagus  - fruits such as pears, apples, and peaches  - whole grains such as whole wheat and bran  - sodas; fruit drinks, especially apple juice and pear juice; and other drinks that contain high-fructose corn syrup, a sweetener made from corn  - milk and milk products such as cheese, ice cream, and yogurt  - packaged foodssuch as bread, cereal, and salad dressingthat contain small amounts of lactose, a sugar found in milk and foods made with milk  - sugar-free candies and gums that contain sugar alcohols such as sorbitol, mannitol, and xylitol