知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。Glucose (sugar) mainly comes from carbohydrates while in the food and drinks you eat. It’s your body’s key source of Vitality. Your blood carries glucose to all of your body’s cells to employ for Vitality.But Furthermore, it lets you know a am