The extreme dieting regimen that self-help guru Tim Ferriss uses to stay lean
Tim Ferriss, author of "The 4-Hour Workweek" and "Tribe of Mentors," is a firm believer in ketogenic diets and fasting. Here's why he believes so firmly in it. The following is a transcript of the video.
Disclaimer: Tim Ferriss is not a doctor. Please seek medical supervision before attempting to go on a fast.
Tim Ferriss: My name is Tim Ferriss, angel investor and author of books including "The 4-Hour Workweek" and the latest, "Tribe of Mentors."
Fasting is of interest to me for medical use. For instance, there are a number of cancer researchers who will do extended fasts. Meaning 5 to 7 days several times per year to purge pre-cancerous cells in the body, which are not problematic necessarily in and of themselves unless they then start to grow out of control. And by limiting your glucose intake, whether through a ketogenic diet for instance or jump-starting ketosis and staying in ketosis through fasting, some people believe that there are benefits to that.
And I certainly see, as someone who suffered from Lyme disease, some very, very clear cognitive benefits from entering a state of ketosis, which you can do through a diet. And you think of blood sugar that is often the preferred fuel for your brain and so on. But once you run out of carbohydrates that you've stored, that's when you start to use that fat that we're so good at storing. And fat can be broken down, with the assistance of the liver, into an alternative fuel source called ketones. So when you are in a "ketotic state," when you are generating ketones, that is called "ketosis." And you can get there through, say, fasting. You can also get there through eating a diet that is very high in fat called, "the ketogenic," meaning producing, "genic - genesis" ketogenic diet.
But fasting to me has become a routine part of my month. I do a three-day contiguous fast every month and then I do longer fasts throughout the year with supervision. And I'm doing blood tracking regularly so that I know exactly where my glucose levels and Ketone levels, as measured by BHB, are by using finger pricks.
But, suffice to say, don't try it at home without professional supervision.
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