There are many sugar-free biscuits and diabetes biscuits on the market. The main raw materials of these sugar-free foods are some foods rich in dietary fiber, such as buckwheat and oats. Because of the slow digestion, the postprandial blood sugar is reduced to some extent, but the main component of these biscuits is still starch, which will eventually be consumed in the form of glucose. No health food and biscuits can lower blood sugar, and only a reasonable diet can control blood sugar well.