High Level of Vit D3 tested

hi Kerry,

Thanks for your service...1 1/2 years ago i had a Vit D3 test of 11ng/ml. I started taking 5500 units a day and 4 months later had 22ng/ml. I cut back to about 4000units/day and got tested last week, one year later, and was surprised to see the result:

294.00 nmol/L

I am feeling fantastic, but have also been doing several other things to improve my health...but am not experiencing any signs that i know of of Vit D toxicity. I am now taking only 500 units/day of Vit D which is in my multi vit.

Any thoughts?

Thank you very much.


Comments for High Level of Vit D3 tested

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Km/Hr vs Miles/Hr
by: Kerri Knox, RN- The Immune Queen!

Hi James,

You are not looking at the UNITS of your Vitamin D. Your level right now is 294 nmol/L, that is only 94 ng/ml. Completely normal level. You divide your result in nmol/L by 3.13 to get your level in nm/l.

It's sort of like driving a car with a miles per hour based speedometer where you are going 55 mph. Then switching to a car with a kilometer based speedometer and panicking because you are now going 90. You just didn't switch units. You are still going the speed limit.

Your level is a BIT on the high side of optimal, though. It should be between 40 to 50 ideally. But it's not toxic. But be sure to keep an eye on it, if you are only taking 400 IU's a day now, it's likely to drop and get too low if you continue to JUST take the 400 IU's for a long time.

Kerri Knox, RN

Thank you!
by: James

Hi Kerri,

Thanks very much for your kind reply...and sending me the conversion formula between ng/ml and nmol/L--I thought my ng/ml was probably about 130--so 94 is much better.

And thanks for the advice going forward...given my track record so far, what do you think should be my daily intake of Vit D now? I don't plan on doing another test of Vit D until August, since I live in a very remote part of the world.

Warm regards,


Are you getting sun?
by: Kerri Knox, RN- The Immune Queen!

If you are living somewhere tropical and getting regular sun, then it's REALLY hard to say how much you need to take. You could just take your 400 IU's a day and be sure that you sunbathe with as much skin showing as possible for 20 minutes to 1/2 hour 3 or 4 times a week and you'll likely be fine.

I suspect that you are living in a sunny climate since your vitamin d level climbed so nicely on 4000 IU's a day, it normally would not have climbed so nicely on 4000 IU's a day.

So, it's REALLY hard to say and if you live in a tropical climate, you might be able to forego any vitamin d at all and just make sure that you expose your skin frequently, and then get tested when you come back into civilization.

I'm curious as to where you are living. Did you retire? Or is it for business? How do you like where you are?

Kerri Knox, RN

In answer to your question
by: James

Dear Kerri,

Thanks so much again for your comments. I think you must be right on my climatic conditions...I am living in the Himalayas at about 5000ft in an Ashram (meditation community) founded by Maharishi Mahesh Yogi. We are about 100 Westerners practicing an advanced Transcendental Meditation program called the TM-Siddhi Program. What we are experiencing is a beautiful daily routine of diving deep into Transcendental Consciousness for many hours a day and then enjoying the beautiful Himalayan mountains. The goal is to gain Enlightenment in the shortest possible time...we feel very fortunate to be here.

Regarding Vit D here, I always dine whenever possible on our outdoor patio, with good exposure to the sun of arms, legs and face...so that probably helped a lot. We are at 30 degrees North Latitude, which is just on the border of good sun exposure year round. So I think I will continue in that mode with just 500/units/day of Vit D until my next test in August, and see how it goes...thanks again for your kind help.

Warm regards,


extremely high according to my doctor
by: InaDupain

According to lab tests my vitamin D level is
over 525 nmol/l

I eat according tot the Weston A. Price Foundation Principle.
I feel great. I have a high energy level compared to other 63 year old ladies in my community.

I do not take any vitamin D supplements apart from some fermented Cod Liver Oil occasionally.

get a retest
by: Kerri Knox

Get a retest and also a calcium level. It could have just been a lab error. If it's truly high, your calcium level will also be elevated.

Vitiligo due to lack of Vitamin D3
by: Joe

Hi, Recently, I got sudden increase of white patches my hand due to vitamin D3 deficiency. I have done a blood test which shows 13.79 mg/dl as result. Usual figures should be 30 mg/dl or above. Can you recommend which tablet or substitute to take to stop spreading.

I stopped drinking alchohol, stopped eating non vegetarian due to this.

Appreciate your valuable inputs or suggestions.


Any tablet will work
by: Kerri Knox

Any tablet will work. I have detailed instructions on how much to take on just about every page on my site. You stopped eating meat when you got diagnosed with vitamin D deficiency? Why? Vitamin D only comes in animal food and sunlight!

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