Erythritol and xylitol sweetness:
Erythritol is about 2/3 as sweet as sugar and xylitol about equivalent sweetness to sugar
Erythritol and xylitol in diabetes:
Both have low calories and do not affect glucose in those with diabetes.
Erythritol compared to other sugar alcohols:
Erythritol is the only sugar alcohol without a laxative effect since most is absorbed in the small intestines
Xylitol compared to other sugar alcohols:
Xylitol does have a laxative effect, but much less than sorbitol and maltitol.
Erythritol, xylitol and bacteria:
Erythritol and xylitol may prevent bacterial adherence to mucous membranes of the mouth and gastrointestinal tract. (12)