Sal Di Stefano

But otherwise, if you're fasting for weight loss, that is a terrible way to lose weight.

Because here's what you're encouraging with fasting.

If you're doing it for weight loss, if you're doing it for spiritual purposes, it's great.

It's stood the test of time.

If you're doing it for fat loss, it's terrible because what you're encouraging is a binge restrict behavior with yourself.

What you're encouraging is a restrict, restrict, restrict, eating window, binge.

Anybody who's fasted for long enough will tell you that this starts to happen.

This is not a healthy behavior.

You don't want to...

eat in this way where you have to fit all your calories in this window.

And then I'm so hungry, but oh, I got to wait till five o'clock type of deal.

Not good.

Also, there's also the stress that it can place on the body.

Women seem to be more sensitive to this than men.

Men seem to be more resistant to the stress of fasting than women, probably due to evolutionary reasons, maybe because women bear children.

But what you'll find is

with people who chronically fast is cortisol levels that don't look very good.

Estrogen progesterone levels start to go a little out of whack and they'll start to display signs of even with their calories are adequate.

They'll start to display signs of too much stress, hair loss, you know, hot, cold intolerance, you know, that kind of stuff.

Fasting does, if you go for X amount, I don't remember what the hours are, eight hours or so, you start to see increased production of catecholamines, epinephrine, norepinephrine.