The Nurse Practitioner has an article indicating that the paleo diet may prevent or treat prediabetes and diabetes:
Lifestyle changes that include adopting a healthy diet, such as the paleo diet, can help prevent prediabetes and T2DM [type 2 diabetes]. This article explores the potential benefits of replacing low-calorie diets with the paleo diet. As primary care providers, NPs [nurse practitioners] are positioned to help inform patients, particularly those with prediabetes and T2DM, about healthy lifestyle choices and provide them with resources to achieve weight loss success.
Source: Combating insulin resistance with the paleo diet : The Nurse Practitioner
I confess I haven’t read the entire article, just the abstract.
Steve Parker, M.D.