There are 2 Dr Richard Bernsteins. One wrote the "Diabetes Solution" (it's been updated many times), is a medical doctor in NY with type 1 diabetes and is now over 80 years old. His entire focus is diabetes and his dietary plan has always been low carb. He is a hero and a pioneer in the field of low carb eating for type 1 and type 2 diabetes. I followed his eating plan for many years.

The other Dr Richard Bernstein is in Canada and seems to run weight loss clinics. I don't know anything about him, only that sometimes people confuse the two.