sugars are a very large molecule, and they must be broken down to pass thru the tiny vessels that are the last stage before capillary action takes them to the muscles, organs and tissues. if this is not done, they tear and scar those tiny vessels, and the muscles, organs and tissues that depend on them starve~! this leads to: blindness~! neuropathy (numbness or very painful nerve stimulation); gangrene; open sores that won't heal; amputation (particularly of the toes, feet and lower legs)~! and kidney failure.