> glucose store will empty relatively quickly, and once that’s used up the body will start breaking down the amino acids in muscle tissue and converting it to g

> glucose store will empty relatively quickly, and once that’s used up the body will start breaking down the amino acids in muscle tissue and converting it to glucose. Not quite true. The body can convert fat into glucose, just like protein, through the process of gluconeogenesis. If I'm not wrong, the body will usually only start breaking down muscle if there's no fat it can make use of. So, someone on a lower-carb, decent protein, high healthy-fat diet will probably have far greater energy than on the usual high-carb, high bad-fat diet. Likely won't have hunger pangs at all, and won't burn out as quickly as the junk food carb-fat-loader. A diet for hunter-gatherers, and Eskimos. And people who want consistent, constant energy through the week. :)