As we head into cooler weather, it’s the ideal time to get your vitamin D tested – whether you live in the north like I do or a warmer climate too.
You may not realize that even people who get adequate sunlight may become vitamin D deficient — with an impact on their bones. That’s because vitamin D absorption and utilization differ, sometimes dramatically, from person to person.
Here are just a few interesting examples I’ve seen:
On average, vitamin D levels are expected to increase 10 ng/mL for every additional 1000 IU of vitamin D — but as you can see, the average doesn’t mean much in real-world situations! That’s why it’s crucial to get vitamin D testing to identify where you are starting — and retest a few weeks later to see if the amount you use is having an impact.
References:
Boroń, D., Kamiński, A., Kotrych, D. et al. Polymorphisms of vitamin D3 receptor and its relation to mineral bone density in perimenopausal women. Osteoporos Int (2015) 26: 1045. doi:10.1007/s00198-014-2947-3
Hollis, B. W., Wagner, C. L., Howard, C. R., Ebeling, M., Shary, J. R., Smith, P. G., … & Hulsey, T. C. (2015). Maternal versus infant vitamin D supplementation during lactation: a randomized controlled trial. Pediatrics,136(4), 625-634.
Drincic, Andjela T., et al. “Volumetric dilution, rather than sequestration best explains the low vitamin D status of obesity.” Obesity 20.7 (2012): 1444-1448.
Mayo Clinic. Vitamin D toxicity rare in people who take supplements, researchers report. ScienceDaily, 30 April 2015.
* Information presented here is not intended to cure, diagnose, prevent or treat any health concerns or condition, nor is it to serve as a substitute professional medical care.