Glucose syrup is a thick, sweet liquid made from the hydrolysis of starch, usually derived from corn, wheat, or potatoes. It is commonly used in the food industry as a sweetener, thickener, and humectant, helping to retain moisture in products like candies, baked goods, and sauces. This syrup is composed mainly of glucose, a simple sugar that the body uses for energy. It is often preferred in recipes because it remains liquid at room temperature and can enhance the texture and flavor of various foods, making it a versatile ingredient in many culinary applications.