Beano (dietary supplement)

The enzyme works in the digestive tract to break down the complex or branching sugars (polysaccharides and oligosaccharides) in foods such as legumes (beans and peanuts) and cruciferous vegetables (cauliflower, broccoli, cabbage, and brussels sprouts, among others).

[1] Two randomized controlled trials show reduction in gas by subjects taking oral α-GAL.

[5][6] The idea for such a product was proposed at least as early as the 1780s in Benjamin Franklin's essay "A Letter to a Royal Academy".

The complex sugars are not broken down by the yeast, and are eventually consumed by the beer drinker, possibly causing flatulence.

Homebrewers have found adding Beano to their brew may produce a beer that has a less malty flavor.