Jillian Michaels, personal trainer and former host of NBC’s The Biggest Loser , came under fire after sharing her thoughts about the keto diet during an interview with Women’s Health . Her response has everyone from TheToday Show host Al Roker to the Keto Guido himself, aka Vinny from Jersey Shore , firing back. Michaels' opinion on keto? She's not a fan. Her full statement on the diet, which you can hear in the video above, was as follows: “I don’t understand. I don’t know why anyone would think this is a good idea. You know what we need to do? Eat all fat and animal protein! No, bad plan for a million reasons! Let’s start with the first one, your cells, your macromolecules, literally are made up of protein, fat, carbohydrates, and nucleic acids. When you do not eat one of the three macronutrients, those three things I just mentioned, you’re starving your cells. Those macronutrients serve an important purpose for your overall health and well-being, each and everyo...