it is a sugar alcohol - polyol or polyalcohol- called Ethylene
glycol. It is an hydrogenated form of carbohydrate, whose carbonyl
group (aldehyde or ketone, reducing sugar) has been reduced to a
primary or secondary hydroxyl group (hence the alcohol).
The simplest sugar alcohol, ethylene glycol, is the sweet, but
notoriously toxic, chemical used in antifreeze. The higher sugar
alcohols are for the most part nontoxic.
Sugar alcohols are usually incompletely absorbed into the blood
stream from the small intestines which generally results in a
smaller change in blood glucose than "regular" sugar (sucrose).
This property makes them popular sweeteners among diabetics and
people on low-carbohydrate diets. However, like many other
incompletely digestible substances, overconsumption of sugar
alcohols can lead to bloating, diarrhea and flatulence because they
are not absorbed in the small intestine. Some individuals
experience such symptoms even in a single-serving quantity. With
continued use, most people develop a degree of tolerance to sugar
alcohols and no longer experience these symptoms. As an exception,
erythritol is actually absorbed in the small intestine and excreted
unchanged through urine, so it has no side effects at typical
levels of consumption.
See my attached link.