on June 27, 2013
at 06:40 PM
The most common, irritating oligosaccharide in beans is raffinose, and is the main culprit of why beans give people gas. Some people are more sensitive to raffinose than others (similar to lactose intolerance), causing severe cramps and bloating.
All of this is a separate issue from phytates.
on June 28, 2013
at 01:44 AM
Raffinose is made up mostly of an indigestible complex carbohydrate galactose (sugar) fructose and glucose. Galactose is very hard for your small intestine to break down and absorb unlike glucose. Galactose is completely broken down in the large intestine (colon) where the gut bacterial feed off the complex sugar and break it down. Gas ia a byproduct of the microorganisms (gut flora) eating away at the sugar.