What Is It Like To Experience Ketosis?
Ketosis is great, it's the transition that stinks. Being in ketosis means that your body is receiving its primary energy from ketones, which come from fat. The standard American diet is pretty high in carbohydrates, which convert to glucose in the blood. As long as your body has glucose around, it will always pick that over ketones. The transition from processing glucose to processing ketones invariably creates a gap in energy delivery to the brain (and other parts of the body), which will NOT kill you but which WILL trigger a stress response in the form of aches, headaches, fatigue, fogginess, etc. Really, it will vary by person. YMMV. If you fast (don't eat anything), you could be in ketosis in 24-48 hours (apparently, I've never tried it). If you carb-restrict your diet to less than 20-40g carbohydrates per day, you could be in ketosis within 3-5 days. It depends on a few factors, but mostly how much glycogen you have stored in your liver (glycogen converts to glucose). I was listening to a Tim Ferris podcast with Dom D'Agostino (Dom D’Agostino on Fasting, Ketosis, and the End of Cancer) where they talk about exogenous ketones among other things. Exogenous ketones are apparent Continue reading >>