Her voice has critics, but I just noticed this TEDTalk has over 4 million views now! Dr. Phinney mentioned on a recent podcast that they have written up the TWO year results of her study, waiting for it to complete the peer-review process, and also noted it is getting easier to find journals willing to publish studies on LCHF. They also decided to go out to five years with her study.
Good Virta blog has other articles by her. https://blog.virtahealth.com