VDC test kit slider
VDC test kit slider
sperti logo 1
Text size A A A
High contrast on off

Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

How does vitamin D supplementation impact respiratory exacerbations?

A study published just last week in Lancet Respiratory Medicine was the first multi-center, double-blind, placebo-controlled trial to investigate the effects of vitamin D supplementation on chronic obstructive pulmonary disease exacerbations.

You need to be logged in to read the rest of this post. Please log in or become a member.

  About: Rebecca Oshiro

Rebecca has a master of science degree in nutrition from Bastyr University where she conducted a university-funded study on vitamin D and athletic performance. She has a certificate in applied behavior analysis from the Florida Institute of Technology, and her passion is using behavioral technologies to assist others in making meaningful changes in their lives.

13 Responses to How does vitamin D supplementation impact respiratory exacerbations?

  1. Debbie says:

    Good morning all! As a way of introducing myself….I have moderate to severe COPD. I quit smoking after my first “exacerbation.” I was in hospital for over a week with intravenous antibiotics etc. Finally released and thought I would be miserable for the rest of my life. Was doing research on Krone’s disease for my boss and discovered the miracle that is Vitamin D. Needless to say my lifestyle and latitude guaranteed that I was “D”ficient . I began supplementing using the Stoss method for 3 days, 50,000 ius D3, and then 10,000-20,000 daily and I haven’t had a serious exacerbation since. The last one was 2007. Yes I’ve had bad colds and even respiratory infections but not something that wasn’t easily remedied with a little more vitamin D, some OC meds and bed rest.

    I also get plenty of sunshine in the summer time. Vitamin D has changed my life. Is it a cure for COPD? No, but it is a treatment that all pulmo specialists should prescribe.

    No more achy bones, no more depression, no more weird pains, no allergies etc.

    Imagine if they had supplemented at a decent level in the study above. There is such a thing as bad science and under-dosing is a perfect example of it.

    Log in to Reply
  2. Rebecca Oshiro says:


    I am thrilled to hear about your experience with vitamin D! It’s stories like yours that motivate me to keep telling people about vitamin D. It’s been a near miracle for me and my family too. Wishing you health!


    Log in to Reply
  3. IAW says:

    If you do not mind me asking (OK if you do not want to.) Do you get your blood levels tested? If you do, does your level stay below 100ng/ml on the amounts of Vitamin D you take? Do you find if you take below a certain amount of Vitamin D or go below a certain blood level, that you start having “issues”? In a sense how did you decide on the 10,000 -20,000 iu’s?
    I do not have COPD but am curious.

    Log in to Reply
  4. Debbie says:

    Sorry, I didn’t get back sooner. I decided on my dosage based on what I thought a normal exposure might be if I could be in the sun every day for 30 minutes to an hour with full arm/leg exposure. This was back before the tests were as prevalent as they are now. I’ve always been a sun lover (my skin is still in pretty good shape for a 62-year old) but the year I got sick my sister and some other people convinced me that the sun was bad for my skin and I stayed out of the sun all summer. Not to say I wasn’t in for something anyway what with smoking and stress from lots of sources…. anyway, I ended up with complete respiratory failure by the end of Sept. of 2007. That’s when I was in hosp. After the D research, I became convinced that my collapse may not have been as severe had I been doing my normal sun routine that summer.

    Anyway, no I don’t test often. I probably should but I am pretty active, work full time, volunteer and do all kinds of stuff so I’m not always thinking about my D level. I’m sure it’s off the charts. I also over imbibe if I feel something coming on and I cut back in the summer when I can spend time at the pool.

    Hope this helps a little.

    Log in to Reply
  5. Debbie says:

    I’m with you on the spreading. My best friend keeps telling me she’s going to get me a T-Shirt that says “Do Not Ask Me About Vitamin D.” I’m vigilant about sharing all the new research on facebook and twitter, too. I do a Debbie’s Daily D Diatribe on my FB page whenever my google news update has something new or I get good stuff from the Vitamin D Council’s newsletter. Imagine the impact it could have on world health if everyone knew about Vitamin D and sunshine.

    Log in to Reply
  6. Debbie says:

    Of course I meant spreading the word. LOL.

    Log in to Reply
  7. Debbie says:

    Couple of other things I wanted to add. I don’t have the mucus and coughing problems that others with the disease seem to have. I did at first. I seemed like all I did was cough. They actually teach you how to make “productive” coughs when you have COPD. I don’t cough at all now. I do take N-Acetyl Cysteine which has been recommended by pulmo specialists and I think it helps with the inflammation too. I’m also Alpha 1 deficient which can make the disease considerably worse and shorten lifespan. So far, so good for me.

    Log in to Reply
  8. IAW says:

    Thanks for the info!!!!

    Log in to Reply
  9. Rebecca Oshiro says:

    Debbie, your comments brought a smile to my face. Debbie’s Daily D Diatribe!!! Brilliant! You’re inspiring me to come up with a Rebecca’s Rant of some sort. Oh wait…..I’m always ranting about vitamin D. I text my parents near daily to make sure they’re giving the cat and dog their vitamin D, chase my husband around to give him his daily pill, and try to suppress the urge (not always successful) to recommend to total strangers that they might consider taking vitamin D. The Vitamin D Council should make a T-shirt similar to the one your friend proposed!

    Log in to Reply
  10. Magic says:


    I don’t know how long that you have been on this site but my story isn’t as ugly as yours. BUT as an 81 year old coming up next month I can tell you that I was MISERABLE most of my life with what I thought were colds or flu or whatever. I have been testing for close to 10 years. I have taken as much as 50,000 ius daily for a week or so. Then I drop back to 20,000. (This was a few years ago. Right now I am taking 10,000 and feel great. I didn’t just “jump in.” I studied the internet for a long time. As long as I feel good on 10,000 I will continue there.

    My son is turning 50 and WORKS OUT BIG TIME. He has been taking 20,000 for a number of years. Has never been on any of the websites. He learned about it from the club he works out at years ago. He is in Tucson..

    I go to a dog park here in Eugene across from Autzen Stadium, the home of the DUCKS who are playing for the national football championship next week..(Doesn’t have anything to do with the Vit D story) but I walk with hundreds of people. They usually have some problem. SO, I tell them the story. It is really frustrating. I would say 90% of them get the word from their doctor not to pay attention to that nut.

    I take 5 health letters and I am happy to say all of them are now recommending D3. Keep up the good work and stay healthy.


    Log in to Reply
  11. Magic says:

    I left out one important thought…. I HAVE NEVER HAD THE TOXIC SYMTEMS. I only feel well. I have never been this old before, lol, but I am doing good.


    Log in to Reply
  12. Debbie says:

    Magic, Rebecca, IAW….sorry to take so long to get back. I was in FL for the holidays soaking up some D. LOL.

    I am so happy I found Dr. Cannell and the Vitamin D council. I really believe it’s changed my life.As I sad, it’s not a cure but it helps in so many ways!

    Also, Magic….I was pulling for the Ducks…..OSU, well I’m a Hoosier!

    Log in to Reply
  13. Rebecca Oshiro says:

    I agree and really like that wording. Not a cure but helps in so many ways. So true!

    Log in to Reply