I read an article years ago in Life Extension Magazine that called Alzheimer's “Type 3 Diabetes”.

They gave plenty of references, but it was long ago, and being low-carb already, I didn't save the article.

IMO, LEF used to be a very good magazine when they were lef.org, but once they changed to lef.com, they got to be more of a supplement pill pusher for profit than an informative publication.