Dr. Kyle Gillett

So if you're young and healthy and you don't have metabolic syndrome, then chloric restriction will likely decrease your testosterone.

So if they're in a caloric maintenance, then it's not going to be

It's not gonna be deleterious.

It's not gonna be bad for their hormone health.

There's a couple of different hormones that we can talk about.

We can talk about testosterone.

We can talk about DHEA, which usually go hand in hand.

And then we can also talk about growth hormone, which is not a steroid hormone, but it's a peptide hormone.

So it's a chain of proteins, amino acids that are put together instead of a sterol.

Think of sterol hormones as coming from cholesterol.

So you do get a little spike in growth hormone after you eat.

but you also get a huge spike in growth hormone, a more significant, less negligible spike overnight.

And that is improved if you are intermittent fasting.

So it's probably gonna help your growth hormone and subsequently IGF-1 levels, which will help more in older age groups than younger age groups.

There's still pretty good growth hormone output, even if you eat two or three hours before you sleep.

It's just the law of diminishing returns.

The longer you go, you get slightly more and slightly more.

But I think about it in terms of endocrine IGF-1, mostly IGF-1 that's synthesized in the liver and released in the liver.

versus IGF-1 that's released.

Classically, an example of this would be your IGF-1 levels increase after resistance training or exercise.