Dr. Layne Norton

Like they, they don't really lose much weight if at all.

Animals tend to overeat in captivity.

And when you look at the

odds ratios of what obesity does for longevity, what I think is happening and what I think you're seeing is these animals just don't become obese and they don't gain excess amounts of body fat.

And so calorie restriction, it's probably more, probably better put as it's just like preventing excess body fat, right?

Because, I mean, if you take that at face value,

I mean, if you're truly in a calorie deficit, you'll die.

Eventually you'll die, right?

So I think a lot of this is literally can be boiled down to just don't become obese.

Don't have excess body fat.

And you don't have to be super lean either.

Like actually the mortality data suggests if you're super lean, that's probably not good either.

There's some aspects of that that I tend to think that people who are very lean are probably extreme in other ways.

And those aspects of their life probably contribute to the mortality rate.

But like 15%, 20% body fat if you're a male appears to be a very protective effect for mortality compared to being 30%, 40% body fat.

And so again, I am very convinced that excess body fat is really bad for metabolic health, cardiovascular disease, cancer, and mortality.

But how you get to –

normal body weight or lean body weight, I think is way less important than actually just getting there.

Yeah, and –

Full disclaimer, I own a supplement company, Outward Nutrition, and so I have some bias here, but I feel relatively – I tell people I don't put anything in it that I wasn't using beforehand and wasn't pretty – felt pretty strong about.