The hunting and gathering activities of aboriginal humans required a high-calorie fare consisting of a assortment of macronutrients—protein, carbohydrates, and fat. While hunting big-game animals—like deer, horses and animals successful the bovine family—provided a ample proviso of calories each astatine once, overmuch of these calories came successful the signifier of protein. However, quality and Neanderthal bodies person a bounds connected the magnitude of macromolecule intake that the liver tin handle.