Vitamin D levels still suck?

Vitamin D levels still suck? This may be why. 

I get a ton of patients whose vitamin D levels just plain stink (below 50nmol/L). In the toilet, and they can’t get it up. 

I’ve got a quick check you can perform on your own to see if this little know fact can help you get your vitamin D levels back into the optimal range again. Which by the way, should be around 70-80nmol/L. 

BTW. If you haven’t had your vitamin D levels checked, you should. You can ask you doctor to run it as part of a routine blood lab or you can get it done with a simple pin prick test here or check out our Functional test page for discounts on lab testing. CAUTION: Vitamin D is fat soluble vitamin (meaning you can overdose), its best to have a doctor supervise you and your levels. 

Most people know the importance of healthy levels of vitamin D. If not, here is a short list of the reasons why you should care. This list is by no means comprehensive, there are simply too many too list all of them here.

  • Fights disease - including multiple sclerosis, other autoimmune diseases, cardiovascular disease and even the common flu.

  • It help fight depression and fibromyalgia

  • It boosts weight loss, partially by acting as an appetite suppressant.

  • Helps with bone health and bone density

  • Decreases the risk of diabetes

  • Decreases the risk of developing cancer - particularly breast, colon, prostate, ovary, esophagus and of the lymphatic system.

  • Decreases the risk of certain issues in pregnancy such as preeclampsia, cesarean section, bacterial vaginosis and even food allergies.


Most vitamin D supplements or multivitamins have around 400IU, sometimes up to 1000IU if you are lucky.

(Please stay away from grocery store brands - save your money). The dosage of 400IU per day is the bare minimum to prevent a disease called rickets, it does not promote optimum wellness nor provide any of the health benefits as those listed above.

It’s fairly standard in todays day and age to routinely take up to5000IU per day, sometimes even up to10,000IU per day. That is about the minimum I use in my practice for my patients. Just about anything less just doesn’t do the trick.

After treating thousands of patients, when I can’t get a patients vitamin D levels to go up…….Wait for it……..Wait for it………

I check Magnesium levels. 

This can also be done with an easy blood or urine test. If your INTRACELLULAR magnesium (not serum magnesium) is low, then it may be helpful for your vitamin D levels if you increase your magnesium intake as well.  

Here is a magnesium hair elemental test you can get on Amazon.

Hair Mineral Analysis

A possibly cheaper and quicker way to get the testing done is to check out our Functional testing page for lab discounts mailed directly to you with no shipping or lab orders emailed within 48 hours you can take to any labcorp location around the world.

We will thoroughly cover which type of magnesium is best for you in a later blog. For now, check out this link for some of the magnesium supplements I use in my practice. 

Get out, get some sun, enjoy life, and be healthy.

Dr. Craig Mortensen

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