My mother suffered Type-2 diabetes for almost 20 years. I put her on an extremely strict raw food diet three months ago and stopped injecting insulin. Her fasting blood sugar level is now in the 90-110 mg/dL range. I now give her some steamed potatoes also.
I too follow the same diet to give her company.
Elimination of oil, sugar and dairy has helped, I believe. She is a vegetarian, so flesh was never in the picture. I do not have to restrict calories with raw food. Eat as much as you can.
No juicing, however. That is a totally not allowed.