From a nutritional point of view, there is no specific applicability of food, as long as there is no allergy to blueberries, the general population can be consumed in moderation. Blueberry is a relatively common fruit, which is rich in nutrients, each 100g of blueberry contains 57KJ of energy, 0.74g of protein, 14.49g of carbohydrates, 173mg of proanthocyanidins, etc. Moderate consumption of blueberries can replenish the body with nutrients and water, replenish energy to maintain the normal physiological function of the human body. Proanthocyanidin content in blueberries is high, which can be a good source of proanthocyanidins. Moreover, proanthocyanidins have biological effects such as antioxidant, which are beneficial to the human body. People who are allergic to blueberries are not recommended to consume blueberries to avoid allergic reactions. The general population should also consume blueberries in moderation, paying attention to a reasonable combination of meals and balanced nutrition. Diabetic patients need to control the intake of blueberries, so as not to affect blood sugar.