Eating too many raisins may cause obesity, dental damage and other hazards. Raisins are rich in calories, carbohydrates, trace elements and other nutrients, moderate consumption can help the body to supplement nutrition. Every 100g of raisins contains about 340 calories, and its carbohydrate content can reach 83g/100g. The content is higher than that of rice, wheat, corn and other staple foods. If you eat raisins in excess for a long time, it may cause obesity, tooth damage and other harm. Raisins in the calories and sugar intake into the body can not be timely decomposition will be converted into fat, long-term excessive consumption is easy to cause obesity. Raisins high sugar, easy to cause dental caries, especially for children, the risk is greater. Because glucose contains high sugar, diabetic patients who consume too much sugar may cause an increase in blood sugar, so diabetic patients should eat a small amount of raisins, to avoid fluctuations in blood sugar in the body, causing discomfort. It is recommended to have a balanced diet and not to consume too many raisins in order to avoid affecting your health.