Birch sugar, commonly known as xylitol, is a plant-based sweetener derived from the bark of birch trees or other plant fibers. It resembles regular sugar in appearance and sweetness but offers a different metabolic profile. Because it has a lower glycemic index than standard table sugar, birch sugar is often chosen by those seeking alternatives that align with specific dietary preferences. Its mild, clean sweetness makes it suitable for baking, beverages, and everyday cooking.

In addition to its taste, birch sugar has been studied for its role in dental health, as it does not contribute to tooth decay in the same way traditional sugar can. Many sugar-free chewing gums and oral care products include it as an ingredient. When used in home recipes, it measures similarly to sugar, though some adjustments may be needed in yeast-based baking. Its versatility and plant origin contribute to its steady presence in health-conscious households.