That's called Faleo. Stick to things which are still whole-celled for the majority of your intake. Whole plants, animal tissues, etc. Fat burns so slowly that it's usually no threat if rendered properly, so many fats aren't necessarily still in the cells of their source plant or animal, but that's okay. If it is powdered, it's going to break down faster and - many people - find that this makes them hungry, while providing no real nutrition. If you are trying to lose body fat, and were a sugar addict, stay away from those fakey bakey things for a good while.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.