Can people with high blood sugar eat longan and dragon fruit?

People with high blood sugar can eat longan and dragon fruit, but should pay attention to the following points: 1. **Longan**: Longan has a relatively high sugar content, approximately 16.2%, and a glycemic index (GI) of 53. Although it is considered a low-GI fruit, excessive consumption may easily cause a rapid increase in blood sugar levels and may even induce acute complications such as hyperglycemic hyperosmolar state or diabetic ketoacidosis. Therefore, individuals with high blood sugar are not recommended to consume excessive amounts of longan. Intake should be controlled to avoid sudden spikes in blood glucose. 2. **Dragon Fruit**: Dragon fruit has a low glycemic index, generally around 25, and is rich in dietary fiber, vitamins, minerals, and other nutrients. Moderate consumption generally does not affect blood sugar levels and may reduce the risk of cardiovascular and cerebrovascular diseases to some extent. Dragon fruit also contains a certain amount of sugar; thus, it is best to temporarily avoid consumption when blood sugar is highly unstable or significantly elevated. When blood sugar is well-controlled, moderate consumption of dragon fruit is acceptable.