One Shot Keto Reviews The grammar and spelling are terrible and it looks like the book was written by someone whose first language is not English. I've done the Keto diet for a couple of months now, but found much better content online for free than is in this book. He is also the bestselling author of Eat Dirt, and the co-founder of Ancient Nutrition supplement company. Dr. Axe appears regularly on the Dr. Oz Show and has written for Shape, Men's Health, Muscle & Fitness Hers, and Well+Good.