Xylitol vs erythritol: which sweetener is better and when?

Xylitol contains about 2.4 kcal/g, can cause digestive issues in larger amounts but benefits dental health. Erythritol has just 0.2 kcal/g, is gentler on the gut and does not raise blood sugar, making it the better choice for people with glycaemic issues. The right pick depends on individual health needs and digestive tolerance.