Blackberry has no special effects as a food, but it helps to appetize and replenish the body with necessary substances and energy. Blackberry has a sweet and sour taste, which can promote the secretion of saliva, and to a certain extent, it can help appetizing. Every 100 grams of blackberry contains 1.7 grams of protein, 0.4 grams of fat, 13.8 grams of carbohydrates and 4.1 grams of crude fiber, blackberry is also rich in vitamin E and a variety of calcium, phosphorus and other mineral components, moderate consumption can be supplemented with nutrients and energy needed by the body, has a certain nutritional value. However, it should be noted that the dietary fiber contained in the blackberry helps to pass the stool, the crowd should not eat a lot of people not shaped. In addition, blackberry contains a certain amount of sugar, diabetic patients should not eat a lot, so as not to cause abnormal fluctuations in blood sugar. In summary, blackberry can have certain benefits to the human body, but the food does not have a special effect, can not replace the medication to treat the disease, when there is discomfort and so on, should immediately go to the hospital, so as not to delay the condition.