Dr. Annette Bosworth

Vitamin D turns out to be a really important one.

If I'm eating sardines four or five cans a week, I probably don't need vitamin D. Why is it so important, vitamin D?

Yeah, it's a hormone, right?

A hormone that goes and talks to every one of the cells in your body and it tells that cell to be its best version of itself.

That hormone goes to the nucleus and it makes that skin cell do something different.

It makes your brain cell do something different.

It makes your heart cell do something different.

You read all the benefits about vitamin D and you think,

It's like it does everything.

How can it do all of these things?

And the reason why is it is not just a vitamin.

It's a hormone that changes how the cell functions.

Unfortunately, it's made of fat.

So if you have high insulin, it gets stuck, parked in your fat cells, and it didn't get to the cell.

Yeah, it's actually why I pointed out that when Jane did that 100 day, she's been struggling with her vitamin D in the 30s or 40s.

But for the best brain, we want it to be a 50.

So she starts on the sardine challenge.

It's in the 30s or 40s and she's supplementing.

She's taking as much as she can.

but what's happening, her insulin was putting it in her fat.