Diabetics use apple cider vinegar because it may help in reducing the level of blood sugar in the body, according to WebMD. It works by blocking the digestion of some starches, which might reduce blood sugar levels.
Diabetics planning on taking apple cider vinegar to treat their condition should first inform a doctor, notes RxList. Apple cider vinegar can react with some medications for diabetes, causing the blood sugar level to go too low. Doctors may need to change the dose for diabetics medications for patients using apple cider vinegar. Frequent monitoring of blood sugar levels is essential while using apple cider vinegar to treat diabetes.