Yes, @asd, I've felt a lot better since I've started including whole fiber in my diet.
As for diabetes, you can actually reverse it with a plant-based diet. Diabetes is not a result of eating too much sugar, but rather is a result of eating too much fat.
Read this book, Forks over Knives, diabetes on page 22 & 23: https://www.amazon.com/Forks-Over-Kn.../dp/1615190457