Good story by Franziska of long-term (10 years) 150 pound weight loss and Reversing diabetes, using Dr Bernstein's diet.

https://www.dietdoctor.com/keto-die...d-loss-10-years

Ps, most libraries have at least one of his editions, or you can find them used, they all work for the diet. That doesn't change in any significant way. What changes most is the detail on medications, new ways to measure glucose, etc.