What Does Science Say About Vitamin D and Your Immune System?

Vitamin D to Optimize Your Immune System
Spread the love

Researchers from Belgium published an article in the August 2010 edition of the journal Current Opinion in Pharmacology discussing the mechanisms by which vitamin D positively impacts the immune system.

Namely, the researchers point out that vitamin D is an immunomodulator of various elements of the immune system, such as monocytes, macrophages, dendritic cells (DCs), as well as T-lymphocytes and B-lymphocytes.

What does this mean?

It means that vitamin D is thought to be responsible for the homeostasis (stability to function properly) of the immune system. Or, put differently, it impacts these elements of the immune system to ensure they are expressing themselves properly.

If an element is “underexpressing” itself, it helps to increase it (immunostimulators). If an element is “overexpressing” itself, it helps to decrease it (immunosuppresors).

The researchers point out that several studies have linked inadequate vitamin D levels to a higher susceptibility of disorders like chronic infections and autoimmune diseases.

What does this mean for us?

Does this mean that vitamin D is the ultimate cure-all for all that might ail or tax our immune systems?

Of course not.

Does it mean it might be a vital component to the proper functioning of our immune systems?

Very possibly, yes.

It is important to note that the main way human beings get vitamin D is through exposure to sunlight. If you are a person who does not get regular exposure to sunlight, or if the winter months are among us and it is just not possible, then supplementation is something to look into.

Fortunately, vitamin D supplementation is typically inexpensive when compared to many other supplements of good quality.

So, if you are concerned about the functioning of your immune system and preventing infections, talk to your doctor today about your vitamin D levels and whether or not it is appropriate for you.

Also be sure to talk to your doctor about how much to take for your needs and how to do so safely.

And, as always, here’s to your health!

Reference: https://pubmed.ncbi.nlm.nih.gov/20427238/

Enjoy what you found here today?

Click here to support this effort!

Thank you for your support!

The statements contained on this website have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat or cure any disease. Unless otherwise specified, no writer for PursuitOfGreat.com is a licensed physician, medical doctor, trainer, nutritionist or health professional of any kind. Do not consume anything written about on this website if you are allergic to it.

The opinions expressed herein are for informational and educational purposes only and are not intended as a substitute for professional medical advice, diagnosis and treatment. Please consult a physician or health care professional for your specific health care or medical needs.

Please talk to your doctor before beginning any exercise or diet program, including those found on this website. The information provided on this site is not intended as a substitute for consultations with your doctor nor is it intended to provide medical advice specific to your condition. (click to read our full disclaimer)

Spread the love

Support this site!


  1. Years ago I started a blog that I didn’t know what to do with yet (it turned into book reviews eventually) and one of my first blog posts was about my fingernails. No seriously. I’m a life long nail biter, with paper-thin nails. One day I looked down and realized I had relatively long nails (for me they were amazingly long). The only thing I could pinpoint that I was doing differently is that I’d started a bit D supplement. So, while it’s not scientific EVEN A LITTLE BIT, I’ve always believed Vit D helped me break my habit.

  2. Pursuit of Great

    I think a lot of us might have similar stories about vitamin D. For me, seasonal allergies disappeared once I started supplementing. I haven’t seen the science to back that up, but it did coincide and I’ve been reaping benefits ever since!

    Thanks for sharing!

Comments are closed.