Mark Sisson

I mean, Rob Wolf and I popularized the term many years ago.

And it became this way to describe a state of the body where you could access any substrate for energy that was available at the time or necessary at the time.

So whereas most people spend their lives just being good at burning carbohydrates, right?

They eat a lot of carbs.

They turn it into glucose or glycogen.

They work out.

They burn that.

They never burn fat.

because they never get to the point where the body says, let's burn fat.

There's always plenty of calories available in the form of glucose or glycogen.

So metabolic flexibility describes the ability to extract energy from the fat stored on your body, the fat on your plate of food, the glucose in your bloodstream, the glycogen in your muscles, the carbohydrates that are on your plate of food, the ketones that your liver makes in the absence of glucose.

And once you develop the state of flexibility, a whole world of empowerment opens up where you're not tethered to appetite and cravings and cravings

hunger all the time.

Your day isn't dictated by when mealtimes are.

You have all the energy you want all the time for the most part.

And one of the side effects of that is because you're continually burning off your own stored body fat, you tend to have low body fat, which a lot of people think is a good thing.

And I'm one of them.

Yeah.

We're both one of them.

So back to how did I get to where I am today?