Hello! My Grandmother Has Had Type II Diabetes For Many

Hello! My grandmother has had type II diabetes for many years. I am trying to help her in any way I can as I am only 17 but will have a job soon. I have done research on diets that consist entirely of plant based foods as well as those that consist entirely of raw plant based foods. I am currently a vegan/consumer of solely plant based foods and I am perfectly healthy. However, I have concerns about my grandmother switching to this lifestyle or a raw vegan lifestyle as she has many medical problems! I am strongly considering trying to help her do this because many people have experienced the healing benefits of eating only (raw) vegan foods. Is there anything you can tell me that might help? Thank you very much!!