Don
If you don't have any health care issues with your current diet then there is no need to investigate this. The reality is the whole globe now is facing a monumental type 2 diabetes epidemic. And it largely started when the world went high carb in the late 70s. There is a large body of evidence to prove this approach is superior to the recommended high carb diet. 
I admit with such an indoctrinated health care sector making the leap is difficult unless you are having health issues. As it turns out people get used to a lot of symptoms. Beta hydroxy butyrate is a powerful signalling molecule that has profound impact on many physiologic processes, as well as being a preferred energy substrate for many bodily functions especially the brain. People in ketosis feel awesome thus the enthusiasm for this new way of eating which contrary to this article is usually done without suppliments, so there are no perverse financial incentives.