To Top

D Toxicity

A number of recent studies suggest that more than 50 percent of Americans are vitamin D deficient—the result of more and more sunblock use as well as people working indoors and not getting the sunshine they need. That deficiency has prompted many to begin taking vitamin D supplements, which is a good thing.

Because vitamin D is fat-soluble, however, many worry if it can build up in the body and be toxic. The answer is yes, but it takes an excessive amount. In a recent article published at his Web site (, nutritionist and health expert Jonny Bowden, Ph.D., CNS, explained what happened to nutrition and health guru Gary Null.

“Null reportedly became very, very sick from taking too much vitamin D. This case was even weirder because the source of vitamin D was his own product, Ultimate Power Meal.

“Ultimate Power Meal was labeled as containing 2,000 international units of vitamin D, an amount I personally recommend as the minimum adults should supplement with (but that’s just my opinion). Unfortunately, his supplier and formulators made a bit of a mistake and left off a few zeros: Ultimate Power Meal actually contained 2,000,000—that’s 2 million—I.U. per serving, not 2,000.

“That means in a month he consumed 60 million I.U. (100 times the amount someone popping a 2,000-I.U. pill on a daily basis would consume). Null reportedly fully recovered within three months of stopping the defective supplement.”

As Bowden went on to explain, vitamin D can be toxic—just like water and oxygen and omega-3s. The number of cases in which that happens, though, are about as common as “an appearance by Bill Clinton at a fundraiser for Sarah Palin.”

Studies performed in the ’30s at the University of Illinois School of Medicine treated patients with 200,000 I.U. a day for arthritis, with less than 10 percent of those subjects showing any ill effects. Those who did become sick got a quick reversal of symptoms by reducing the D dosage and increasing fluid intake.

Vitamin D toxicity shouldn’t be a concern if you’re taking moderate doses in supplement form—even if you’re also getting sunshine regularly. Remember, Null took 2,000,000 I.U. every day for more than three months and survived.

You must be logged in to post a comment Login

Leave a Reply

More in Latest

  • Making The Right Decisions

    What you put into your body goes a long way to maintaining your health. By Jay Campbell and Jim Brown  ...

    Sharon OrtigasOctober 24, 2017
  • Are Macros The Key To Your Goals?

    The difference between looking good and feeling good is more than just a number. By Raphael Konforti MS, CPT   “You...

    Sharon OrtigasOctober 23, 2017
  • Abs, Now!

    The exercises and focus you need to craft the eye-popping abs you want. By Adam Clark, CPT   Summer is gone....

    Sharon OrtigasOctober 20, 2017
  • 5×5

    This isn't some math problem. It's your solution to build power and strength. By Eddie Avakoff   What attracts me to...

    Sharon OrtigasOctober 19, 2017
  • Add Power And Size To Your Shoulders

    A routine sure to bulk you up! By Heather Neff, CPT   Want bolder, stronger shoulders with better definition? You came...

    Sharon OrtigasOctober 18, 2017
  • 5 Step Guide To Successful Time Management!

    These tips will ensure nothing gets in the way of succeeding with your workout goals. By Kris Gethin   In this...

    Sharon OrtigasOctober 17, 2017
  • Total Knockout!

    You already fell for Lindsay Christiansen with one simple glance. Are you man enough to dive into who she really is?...

    Sharon OrtigasOctober 16, 2017
  • 9 Reasons To Take Branched-Chain Amino Acids

    If you are serious about your physique, you'll seriously want to give this supplement a look. By Sarah Butcher   BCAA:...

    Sharon OrtigasOctober 16, 2017
  • The Spartan Chest Workout

    Add size and definition to your chest with this next level chest workout. By Raphael Konforti MS, CPT   History tells...

    Sharon OrtigasOctober 13, 2017