|Yes it can work for some people but for people who have underlying metabolic issues like insulin resistance or Type 2 Diabetes it is not a good idea to be carb loading and causing insulin spikes. Also there has been enough research done to show that “pure” LCHF is sustainable for the long term without causing any harm. Dr Dominic D’Agositno who has been eating a strict ketogenic diet while body building, as well as doing research on it’s effects, has found no down side to it so far. People do not realize babies are born in ketosis, remain in ketosis if they are breast feeding and stay that way until they start eating solid foods. This is a perfectly natural state for the human body to be in, if it was harmful it wouldn’t be the natural state derived from drinking mother’s milk during one of the most crucial times in our neural development.