Eclipse Keto Both of these products contain only Stevia, from Rebiana leaves, and Erythritol. According to About.com, Erythritol is the sugar alcohol (polyol) that has the least impact on blood sugar. Erythritol has almost zero calories, carbs, and glycemic index. The reason is a bit different that most sugar alcohols, which are only partially absorbed in the small intestine. Most (60-90%) of the erythritol is absorbed into the blood, but is then excreted in the urine. Because of this, erythritol tends to produce much less intestinal distress than other sugar alcohols. https://www.healthline.com/health/exerci...k-fat-exercises