Diabetics can eat pineapple, but in moderation. Pineapple contains manganese ions, thiamin, carotene and other nutrients, which can be supplemented by moderate consumption. In addition, pineapple has a GI value of 66, which is a medium GI value food. For diabetic patients with stable blood glucose control, eating some pineapple in small amounts will not have much effect on blood glucose levels. However, patients should not eat a large amount of pineapple, because eating a large amount of pineapple may lead to fluctuations in blood sugar in diabetic patients, which is not conducive to the control of the disease. Patients are advised to consume pineapple in moderation and consult their treating doctor if necessary. In daily life, patients with diabetes are advised to choose a low-salt, low-sugar and low-fat diet, avoiding fried and high-sugar foods, and moderate aerobic exercise, all of which are helpful for blood glucose control. Patients are advised to monitor their blood glucose regularly and seek prompt medical attention if they feel unwell.