Diabetes Type II can be reversed with diet and exercise. Diabetes Type I can be vastly improved with same.
Eating a High Fiber, Complex Carbohydrate diet, good fats, low simple carbohydrate (sugars), low bad fats. Exercise and certain supplements can greatly arm you in combating and even curing this disease.
Dr. Axe video. https://www.youtube.com/watch?v=TwW4-VYFTjg
Dr. Axe Article: https://draxe.com/insulin-
Insulin Resistance Diet video. https://www.youtube.com/watch?v=5KWAgKR9JBE&t=1100s