My only thought about that diabetes illustration was “What the heck is this doing here?” Seems the editing author wanted to add something sciencey, but it has little to do with what Taubes wrote.
Like Jean I find it interesting that he is writing a book interviewing doctors who use LCHF. This one should be quick to write instead of the years it takes him with previous books. Easier for readers to get the idea quickly with real life cases. Can’t wait to read it!