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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.
Causes of GAS. List of causes of GAS. Air swallowing (aerophagia) - this causes more belching than flatulence; can occur from eating too fast, chewing gum, smoking, ill-fitted dentures, or other reasons. Fundoplication surgery - a treatment for GERD that may cause gas as a side effect.