You can drink coffee without sugar for insulin resistance, but you should drink it sparingly. Drinking coffee does not have a therapeutic effect. Coffee has a refreshing effect, and patients with insulin resistance can also drink a small amount without significantly aggravating their condition, and it is not recommended to add additives such as granulated sugar, icing sugar and condensed milk. However, if you are also suffering from hypertension, coronary heart disease, atherosclerosis, gastric ulcer and other diseases, or when you are in pregnancy, it is not recommended to drink coffee. After drinking coffee, it may lead to sleep abnormalities, headaches and other adverse reactions. Patients with insulin resistance are advised to seek timely medical attention, maintain a healthy lifestyle on a daily basis, eat a low-sugar diet, exercise appropriately, and control their weight to avoid overweight or obesity.