Lactate is an energy source and can be produced by tissues of the body with or without oxygen. It doesn't have to just be without oxygen. In cases where you are hot, it usually means lactate will go up though. So that would be the reason for why some individuals are having these diets, right? Because they want to go into this metabolic state of producing ketones or the liver producing ketones, right? Yeah. But the whole... This is the thing that I find interesting is that obviously when people limit their carbohydrate intake and they're limiting their ability to use glucose for energy, which is a very good way of creating energy in the form of ATP. If you