Does white kidney bean extract really block carbs?

[ebisimark0022]

Carb blockers only prevent a portion of the carbs you eat from being digested. At best, they appear to block 50–65% of carb-digesting enzymes (5). ... This may happen because carb blockers don't directly prevent carbs from being absorbed. They may simply increase the amount of time it takes for the enzymes to digest them.

http://thesupplementpolice.com/definitive-guide-to-carbohydrate-blo...