Alpha-Galactosidase for Bloating and Intestinal Gas

Reduces gas symptoms from high-fiber foods containing raffinose/stachyose by 50-70%. Beano (alpha-galactosidase 300 GalU) is the most studied formulation.

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The Bottom Line

Reduces gas symptoms from high-fiber foods containing raffinose/stachyose by 50-70%. Beano (alpha-galactosidase 300 GalU) is the most studied formulation.

Key Study Findings

Review

Gastrointestinal Involvement in Anderson-Fabry Disease: A Narrative Review.

Dose: None vs: None Outcome: None Effect: None None

Population: None

Randomized Controlled Trial Double-blind

A randomized double-blind placebo-controlled crossover pilot study: Acute effects of the enzyme α-galactosidase on gastrointestinal …

Dose: 1200 G vs: placebo Outcome: every 30 min during 7 Effect: None None

Population: patients with ibs after three standardized

Other n=17

FABry Disease Patient-Reported Outcome-GastroIntestinal (FABPRO-GI): A new Fabry disease-specific gastrointestinal outcomes instrument.

Dose: None vs: no treatment Outcome: None Effect: None None

Population: fabry disease but are often nonspecific

Randomized Controlled Trial n=31 2.0 weeks Double-blind

Increasing Symptoms in Irritable Bowel Symptoms With Ingestion of Galacto-Oligosaccharides Are Mitigated by α-Galactosidase Treatment.

Dose: 300 GALU or 150 GALU vs: Placebo (glucose) Outcome: GI symptom severity on VAS Effect: None pP0.006

Population: IBS patients (Rome III, H2 producers)

Randomized Controlled Trial n=125 4 weeks Double-blind

Does oral α-galactosidase relieve irritable bowel symptoms?

Dose: alpha-galactosidase 600 GalU per meal vs: placebo Outcome: overall IBS symptom relief Effect: no significant difference vs placebo >0.05

Population: IBS patients

Case Reports

A family with various symptomatology suggestive of Anderson-Fabry disease and a genetic polymorphism of alpha …

Dose: 3.7nmol/mL/h vs: None Outcome: None Effect: None None

Population: patients

Key Statistics

Studies

300

Participants

↑

Positive

Grade

Referenced Papers

Gastrointestinal Involvement in Anderson-Fabry Disease: A Narrative Review. Review

International journal of … 2021 16 citations

FABry Disease Patient-Reported Outcome-GastroIntestinal (FABPRO-GI): A new Fabry disease-specific gastrointestinal outcomes instrument. Other

Quality of life … 2021 14 citations

A randomized double-blind placebo-controlled crossover pilot study: Acute effects of the enzyme α-galactosidase on gastrointestinal symptoms in irritable bowel syndrome … RCT

Neurogastroenterology and motility 2021 4 citations

Increasing Symptoms in Irritable Bowel Symptoms With Ingestion of Galacto-Oligosaccharides Are Mitigated by α-Galactosidase Treatment. RCT

The American journal … 2018 49 citations

Does oral α-galactosidase relieve irritable bowel symptoms? RCT

Scandinavian journal of … 2016 17 citations

A family with various symptomatology suggestive of Anderson-Fabry disease and a genetic polymorphism of alpha galactosidase A gene. Case Report

Clinical biochemistry 2015 18 citations

Efficacy and tolerability of α-galactosidase in treating gas-related symptoms in children: a randomized, double-blind, placebo controlled trial. RCT

BMC gastroenterology 2013 12 citations

The effect of oral alpha-galactosidase on intestinal gas production and gas-related symptoms. RCT

Digestive diseases and … 2007 45 citations

Gastrointestinal manifestations of Fabry disease: clinical response to enzyme replacement therapy. Other

Molecular genetics and … 2005 84 citations

Does Beano prevent gas? A double-blind crossover study of oral alpha-galactosidase to treat dietary oligosaccharide intolerance. RCT

The Journal of … 1994

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Commonly Used Dosages

general:: 150-300 GalU (alpha-galactosidase units) per serving of gas-producing foods
standardbeanodose:: 300 GalU (2-3 tablets) with first bite of problem food

Upper limit: No established upper limit; adjust per meal as needed

Dosages Studied in Research

Dosage	Duration	Effect	N
None	--	Mixed	--
1200 G	--	Neutral	--
None	--	Positive	17
300 GALU or 150 GALU	2.0 weeks	Positive	31
alpha-galactosidase 600 GalU per meal	4 weeks	Neutral	125
3.7nmol/mL/h	--	Mixed	--
None	2 weeks	Positive	--
300 or 1200 GalU	--	Positive	8

Best taken: With the first bite of gas-producing food

Safety & Side Effects

Reported Side Effects

⚠ Generally very well-tolerated
⚠ Rare allergic reactions to mold-derived enzyme (Aspergillus source)
⚠ May cause mild GI discomfort in rare cases

Known Interactions

● Acarbose (alpha-galactosidase may counteract the blood sugar-lowering mechanism of acarbose; contraindicated for concurrent use)
● Miglitol (similar mechanism conflict as acarbose)

Tolerable upper intake: No established upper limit; adjust per meal as needed

Always consult your healthcare provider before starting any supplement.

Frequently Asked Questions

Does Alpha-Galactosidase help with Bloating and Intestinal Gas?

Based on 4 studies with 300 participants, there is moderate evidence from clinical studies that Alpha-Galactosidase may support Bloating and Intestinal Gas management. Our evidence grade is B (Good Evidence).

How much Alpha-Galactosidase should I take for Bloating and Intestinal Gas?

Studies have used various dosages. A commonly studied range is 150-300 GalU (alpha-galactosidase units) per serving of gas-producing foods. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Alpha-Galactosidase?

Reported side effects may include Generally very well-tolerated, Rare allergic reactions to mold-derived enzyme (Aspergillus source), May cause mild GI discomfort in rare cases. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Alpha-Galactosidase and Bloating and Intestinal Gas?

We rate the evidence as Grade B (Good Evidence). This rating is based on 4 peer-reviewed studies with 300 total participants. The overall direction of effect is positive.

Related Evidence

Other ingredients for Bloating and Intestinal Gas

Pancreatic Enzymes (Pancrelipase) A Ginger B Lactobacillus reuteri B Medium-Chain Triglycerides (MCT Oil) C

Alpha-Galactosidase for other conditions

Irritable Bowel Syndrome (IBS) D

Quick Verdict

Reduces gas symptoms from high-fiber foods containing raffinose/stachyose by 50-70%. Beano (alpha-galactosidase 300 GalU) is the most studied formulation.

Evidence Strength72%

High confidence

Study Breakdown

RCT (6)Meta (0)Other (0)

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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.