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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.
Onions. Another vegetable that can cause gas and digestive problems are onions. They contain high levels of fructans such as inulin and fructooligosaccharides. While considered a prebiotic, fructans can cause gastrointestinal issues for many people, including bloating, excessive gas and even IBS.