How do ketones happen? Diabetes Home Sick days When to follow your sick day plan Go to hospital when What are ketones? How do ketones happen? What to do when you have ketones You have ketones. How do you feel? You have ketones. What do you do? Insulin is the key. It unlocks the energy in your blood sugars. But Sometimes you may not have enough insulin to unlock the energy. Your blood sugars go high. But it can also be in range or low. You feel very tired. Your body can not get energy from your blood sugar. It tries to get it somewhere else. It tries to get it from your fats. This makes ketones. The ketones get in your blood. This can make you very sick. But You can treat ketones. Follow your sick day plan. It will help you stay well. Back Diabetes Home Next