Why Vitamin D Toxicity SHOULDN’T be a Consideration

Unlike other vitamins (C, B, etc.), vitamin D3 is difficult to obtain from food and depends mainly on the amount of sunshine we get. This, along with a few other factors (including the implementation of the low-fat guidelines), has created a vitamin D deficiency epidemic in North America. R

55% of otherwise ‘healthy adults’ and 70% of teenage girls have clinically deficient levels.

This becomes even more of an issue, for those with inadequate exposure to regular sunlight, darker or thinner skin (elderly), pregnant women, and obese individuals.

If you stop for a second and think about your typical day, when are you actually outside in the sun?

Probably not between 9am & 5pm.

And what about from November to March?

Even if you are outside, are you getting sunlight, or are you covered up?

Here is a chart of the minimum amounts necessary per day in order to maintain our current vitamin D levels:


I will say it again – these are the dosages necessary to maintain your current blood serum levels.

So what are your levels?

Well, for those in Northern Climates, there’s a lot of days we get zero IUs as we see extremely little sun (if any) in the winter months.  Vitamin D is a fat-soluble vitamin, meaning that we can store reserves for later use, but this also means if we’re not stockpiling reserves (no sunshine or supplementation) we’re losing at least the maintenance amount daily. Thus, according to the vitamin D council (who I’d trust more than the other 2 organizations), 10 days of no sun/supplementation would potentially put you at 50,000IUs of need. Keep in mind that this is to return to the level you started with, which could’ve been deficient to begin with. Sadly, many living in warmer climates are getting equally atrocious intake levels. TJ that lives in Arizona and works for Tech Co. XYZ from 8am-6pm could be just as deficient as Janice from Alaska.

Each day you don’t get sun is another day without vitamin D!

For whatever reason the majority of the population seems to be extremely concerned with the potential for toxicity. Perhaps if they recognized how rare vitamin D toxicity was, and how detrimental deficiency can be, they’d adjust their view.  For instance:

Dosages of 100,000IU’s given every 4 months for 5 years only raised levels to 0.29dL. (Which is still deficient)

The only two men ever ‘poisoned’ took 1,7000,000IUs EVERY DAY for 7 months!

That’s how difficult it is to overdose, and these are the diseases you’re at risk of from deficiency:


It’s clear that deficiency should be a much bigger concern than toxicity. I’m not sure who’s spreading the word that we’re all at risk of too much vitamin D, but perhaps they should concentrate their energy on the bigger nutritional problems (pharmaceutical meds, fructose, soy).

You gotta love the person telling you they don’t want to overdose on Vitamin D, as they sip on a diet pop and nibble on a bagel for breakfast!

Unless you’re a surfing instructor in Hawaii, or a fisherman in the Caribbean, you’re likely deficient in vitamin D.  In order to avoid deficiency, and the health problems that come with it, you need to get sun or supplement vitamin D.

Not enough vitamin D should be more of a concern than too much.

What many don’t realize is that the recommended daily requirements for the various vitamins and minerals are established based on ‘preventing a disease at the lowest possible level.’ If your goal is to narrowly escape a fatal disease, then the government recommendations may be for you, but I’m assuming most of us are seeking optimal health not minimal health.

Stay Lean!
Coach Mike


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