but Navy SEALs Jocko Willink and Leif Babin say this is a misrepresentation. In their book, "The Dichotomy of Leadership," they explain that a good leader has to be aggressive, but not too aggressive.

The US military has been looking at how changing the diets of elite operators like Navy SEALs as new evidence emerges ... We have really good indications of how to put you in ketosis.