How does Beano (alpha-galactosidase) work?

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Last updated: April 10, 2025View editorial policy

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From the Research

Beano works by providing an enzyme called alpha-galactosidase that helps break down complex sugars in gas-producing foods that humans cannot naturally digest. When you consume foods like beans, broccoli, cabbage, and whole grains, they contain complex carbohydrates called oligosaccharides that your body lacks the enzymes to fully digest. These undigested sugars pass into your large intestine where bacteria ferment them, producing gas that causes bloating and flatulence. By taking Beano before meals, the alpha-galactosidase enzyme breaks down these complex sugars in the digestive tract before they reach the large intestine, allowing for more complete digestion and reducing gas production.

Key Points to Consider

  • The most recent and highest quality study on this topic is from 2012 1, which compared the efficacy of alpha-galactosidase and active charcoal in improving ultrasound visualization of abdominal organs in patients with excessive intestinal gas.
  • The study found that both alpha-galactosidase and active charcoal improved visualization, but alpha-galactosidase was more effective in improving visualization of the pancreatic tail and right hepatic lobe.
  • Another study from 2007 2 found that alpha-galactosidase reduced intestinal gas production and gas-related symptoms in healthy volunteers after a challenge test meal.
  • For best results, take Beano at the beginning of meals containing gas-producing foods. The typical dosage is 2-3 tablets for a regular meal, though you can adjust based on your needs and meal size.
  • Beano is generally considered safe for most people, though those with galactosemia (a rare genetic disorder) should avoid it, and those allergic to molds should be cautious as the enzyme is derived from a mold source.

Important Considerations

  • It is essential to note that while Beano can help reduce gas production and alleviate symptoms, it may not completely eliminate them.
  • If you experience persistent or severe symptoms, it is recommended to consult with a healthcare professional for further evaluation and guidance.
  • Additionally, Beano may interact with certain medications or have side effects in some individuals, so it is crucial to follow the recommended dosage and consult with a healthcare professional if you have any concerns.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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