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Some experts even recommend avoiding certain vegetables including onions, radishes, cabbage, celery, carrots, Brussels sprouts, broccoli, cauliflower. But if you avoided some of these foods, especially the nutritious vegetables, you'd be missing out on valuable vitamins and nutrients just because you're afraid of gas.
Foods That Cause Gas. Many carbohydrates can cause stomach gas, as they can be tough for the digestive system to process. Some common high-fiber foods that can cause excessive gas include: 1  Beans. 2  Whole-wheat products, such as cereals, breads, and pastas. 3  Bran products.4  Oatmeal and oat bran. 5  Vegetables, especially asparagus, broccoli, Brussels sprouts, and cabbage. 6  Fruits, especially pears, peaches, prunes, and apples.ome common high-fiber foods that can cause excessive gas include: 1  Beans. 2  Whole-wheat products, such as cereals, breads, and pastas. 3  Bran products.