It can be different for different people.
If you have type 1 diabetes, you might need to use a special calculator before you eat. This calculator helps figure out how much NovoLog you should take based on your blood sugar level and how much food you plan to eat.
If you have type 2 diabetes, you probably won’t need a calculator. Your doctor will simply tell you how much NovoLog to use.
Sometimes, if your blood sugar is too high, you might need to use a correction dose of NovoLog. Make sure to talk to your doctor about when and how to do this.