LOL. Looks like a schematic of the Starship Enterprise.
Your body can make proteins and fats using sugar.
Your body can make fats and sugar using proteins.
Your body can make sugar and proteins using fats.
Thus I find the “no carbs” people as silly as the “no fat” people. Cotton candy is a fat free food! Bacon is carb free! Depending upon your diet is one good and the other bad? Or is excess of either probably not a good idea?