As you know, Vitamin D is really important for your health, from immune system function to mood to blood sugar health,

Vitamin D is essential.

But a lot of people don't know that Vitamin D requires Vitamin A for the Vitamin D to bind to its nuclear receptor.

There's a phenomenon that's a complex multisyllic word known as heterodimerization,

meaning the Vitamin D receptor also binds and co-localizes with the retinoeic acid or the Vitamin A receptor.

So in today's show we're going to talk about Vitamin D's sister or brother, if you will, Vitamin A. This is a similarly important fat

soluble vitamin that doesn't get a lot of airtime and I'm not sure why I think a

lot of people assume they're getting enough vitamin A from their diet.

But it turns out there's two different sources of vitamin A, if you will.

There's retinol from animal-based products and fish.

Cheese, meat, dairy products, as well as fish.

Retenol is different from pre-Vitamin A

that you get from vegetables known as carotenoids.

There's up to 50 different carotenoids

and not all of them, the pro-Vitamin A,

and habilides, these krottonoids, are converted to retinol.

So I think it's important that if you supplement with vitamin D to also consider

vitamin A either as a supplement or a strong dietary source and

we're going to talk about the sources as I mentioned dairy products, cheese, animal

products and fish are different because they contain retinol not the preform vitamin A that has a

varying degree of conversion into retinol and that's what you really need.

So in today's show we are going to take a deep dive on that. I think it's timely, it's

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