Anhydrous dextrose

Anhydrous dextrose is purified, crystallized D‑glucose made by breaking starch into glucose and then refining and crystallizing it to remove water of crystallization. Regulations define its identity and purity, and it is generally recognized as safe as a common nutritive sugar. It supplies 4 kcal per gram, tastes less sweet than table sugar, and is the reference for glycemic index, meaning it raises blood sugar very quickly. In foods and drinks, amounts vary widely; the food matrix (fiber, protein, fat) can slow absorption and blunt the spike. In short, health effects are driven more by dose and context than the molecule itself. For most healthy adults, occasional small amounts are fine, but frequent or large servings of any free sugar can push up calorie intake and blood glucose. Because it is highly refined and nearly pure glucose, it counts toward “sugars” on nutrition labels and should be moderated within overall dietary guidelines. People managing diabetes or insulin resistance need to be especially cautious with fast sugars. Athletes may use it strategically around hard training to replenish carbohydrate quickly. It is not hydrogenated and does not contain trans fat; concerns relate to glycemic and caloric load rather than inherent toxicity.