Diabetic patients should avoid alcoholic beverages such as beer as much as possible. If patients drink beer, it will increase the burden on the liver, which is a very important organ for diabetic patients because this organ is the most important target organ for insulin action. Frequent beer drinking will lead to certain problems with liver function and possibly fatty liver, which will further aggravate the patient’s insulin resistance and is detrimental to the control of fasting and post-prandial blood sugar. In addition, beer as a beverage calorie is very high, because the main raw material of beer is wheat, often drinking beer will lead to a significant excess of calorie intake, causing patients abdominal obesity, further aggravating insulin resistance. Therefore, whether from the impact on the liver or on weight, it is not recommended for diabetic patients to drink beer, otherwise it is not conducive to the overall control of the disease.