Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Alpha galactosidase is an enzyme that helps break down complex carbohydrates, especially oligosaccharides found in foods like beans, whole grains, and some vegetables. These carbohydrates are not fully digested in the small intestine due to a lack of endogenous alpha galactosidase in humans. As a result, undigested carbohydrates pass into the colon, where they are fermented by bacteria, leading to gas production and gastrointestinal discomfort.

Supplemental alpha galactosidase, often sold under brand names such as Beano, has been studied in randomized controlled trials. The evidence shows that when taken with meals, alpha galactosidase can significantly reduce the production of intestinal gas and bloating by aiding the digestion of these complex carbohydrates in the small intestine, before they reach the colon. For example, a 2007 meta-analysis published in Alimentary Pharmacology & Therapeutics concluded that alpha galactosidase "significantly reduces gastrointestinal symptoms in healthy volunteers after the ingestion of a meal rich in fermentable oligosaccharides."

Thus, its use is scientifically validated for supporting small intestine function by improving carbohydrate digestion and reducing symptoms like bloating and flatulence. However, it is important to note that its benefits are specific to individuals who experience symptoms due to the consumption of foods rich in alpha-galactosides and not for general small intestine health.

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