i have a question about addictions specifaclly sugar addiction?

hey folks i have a little bit of a problem that i need advice on my gf/fiancee has major sugar addiction and i am really scared that its going to cause her to die one day if she doesnt get help if you are wondering how i know that its a life threatening addiction these are some of the symptoms that she exhibits when she is high on sugar her heart rate goes sky high even at rest and she gets really dizzy and sometimes runs into walls and the biggest of my worries other than the fact that her heart rate get so high is she sometimes passes out i reallly need some help with this so i can help her with her addiction please and i dont need any bs answers