Natural Cures for Diabetes?

Good evening, I wanted to ask if there is any natural cure to recover the beta cell when it comes to diabetes. I have been diabetic for about 6 years, all antibodies negative, but in any case the Cpeptide is 0.2, it is not known if it is a type 1 or a type 2. It is treated with insulin and metformin, thanks to all who will answer me. Sincerely, Ivan.