What causes excessive gas, bloating, and weight gain?

Judy Caplan
Nutrition & Dietetics

Many factors contribute to gas, bloating and weight gain but they may not be related. A diet high in refined foods that are low in fiber can cause gas and bloating. Food allergies can also cause gas and bloating especially allergies to fruit sugars called oligosaccharides. Also when you are not accustomed to dietary fiber, at first you might experience gas and bloating but over time you should adjust. Weight gain is caused by eating too many calories, not enough exercise, and eating foods that are devoid of nutrients and loaded with fat and sugars.

Vandana  R. Sheth
Nutrition & Dietetics

Many factors can cause excessive gas, bloating and weight gain. Here are some common factors:

  • A diet rich in highly processed foods (low in fiber)
  • High sodium/salt intake
  • Drinking sugar sweetened and sugar-alcohol sweetened beverages
  • Minimal intake of fruits, vegetables, whole grains
  • High fat foods
  • Large meals
  • Eating in a hurry
  • Very sedentary lifestyle

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.