Sugar Alcohols

Sugar alcohols like erythritol, maltitol, and xylitol sweeten many low-sugar bars and are listed on the panel separately from sugar. The factual notes worth having: they contribute fewer usable carbohydrates than sugar, and in larger amounts several are known to cause bloating or digestive upset — maltitol most notoriously. That is a description of a common effect, not medical advice. When a bar leans on them to hit a "1g sugar" headline, the review points to the sugar-alcohol line so the trade-off is visible.