Comments for Vitamin D2 or D3 with long term Phenyoin use

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You're thinking too hard.
by: Kerri Knox, RN- The Immune Queen!

Hi Eric,

You're thinking a bit too hard about this. There is not an 'inverse relationship' between d2 and d3. One doesn't 'make' the other one go down, it's just that they measure d2 and d3 separately. If you were taking vitamin d3 and measured it, then stopped taking vitamin d3 and began taking d2, then of course the d3 will go down- because you're not taking it any more.

Think about it this way, if you were taking vitamin d in ANY form, then stopped taking it, then your level would go down, right? This is the same with d2 and d3- you stop taking one, then THAT level will go down REGARDLESS of what else you are taking. You STOP taking d2 and d2 will go down. You STOP taking d3 and your d3 level will go down.

As far as d2 vs d3, please read my page on Vitamin D3. I NEVER EVER EVER for any condition recommend D2. Our bodies are not designed to ingest D2. We are designed to get d3- that's why vitamin d comes in the form of d3 in nature and when we produce it in our skin.

But be sure to read my page on Magnesium and Vitamin D- which, having a seizure disorder, you are probably already moderately to severely magnesium deficient anyway.

And if you want to study something about vitamin d, forget worrying about d2 vs d3, read up on the COFACTORS needed for vitamin d and see why you should NEVER take vitamin d by itself and why you should ALWAYS take a 'High Quality' (not a One- Day or Centrum junky vitamin pill) broad spectrum multivitamin with it to avoid problems...

Kerri Knox RN Immune Health Queen

Kerri Knox, RN- The Immune System Queen
Functional Medicine Practitioner
Immune System
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