Welcome to the Doctor Burg, Healthy Keto and Intermittent Fasting Podcast.

Now, your host, the man taking your health to a whole new level.

Doctor Eric Burg.

So in this video, I want to touch on vitamin D testing challenges.

Okay, the big problem with vitamin D is that there's no agreed upon value of what you should have in your blood.

I mean, they have an idea or estimation.

Now, we can range all the way from this value right here to this value right here, depending on what units you use,

could range from this value to this value.

Well, I guess you can take an average of these numbers, depending on what units you're measuring, vitamin D from.

Also, the Institute of Medicine will tell you that you need between 600 to 800 eye use of vitamin D every day,

yet the endocrinology society will say you need 1,200 eye use every day.

So again, there's this, there's not a lot of agreement on how much you need or how much should be in your blood.

A couple of things I want to talk about that are very, very important though.

There's two forms of vitamin D. One is an inactive form, 25 hydroxy vitamin D.

So it's like the precursor to the active form, which is 125 dihydroxy vitamin D.

So this is the active form, this is the inactive form.

The way this works, and by the way, most of the vitamin D in your blood is the pre inactive version.

And many times what they're testing is they're testing 25 hydroxy vitamin D.

They're testing the precursor or the inactive vitamin D.

Okay, put that to the side, we'll come back to it.

So what happens is you have the pre vitamin D that goes through the body and goes through the liver.

And from the liver, it then goes to the kidney.

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