How Vitamin D Affects Immune Health

We recently published a post about The Essential Roles of Vitamin D, and recent research suggests there’s even more to say about the role Vitamin D plays in our immune health.

An analysis published in early February 2017 suggests that Vitamin D supplementation plays a moderate role in the prevention of colds and flu, and helps to reduce the risk of respiratory infection among populations that do not get adequate sun exposure (and therefore may be deficient in the “sunshine vitamin”). The research reviewed over 25 different studies involving over 10,000 participants, and found that supplementation for those that do not get the recommended 600iu of vitamin D showed a significant reduction in the instance of developing respiratory infection by about 10 percent.

Many foods are already fortified with Vitamin D in this country, including most dairy products, some cereals and fish oil supplements. It is a common addition to multivitamins as well (in about 400iu doses). The body produces vitamin D on it’s own as a result of sun exposure, but this varies dramatically depending on the amount of time you spend outdoors daily, and also the season (and region). It was recommend in 2010 that the RDA (recommended daily allowance) of Vitamin D for adults is 600iu daily, and these guidelines were set forth mainly to ensure we get enough vitamin D for bone health and optimal calcium absorption. With new research coming out every year since (and more research is needed still), the guidelines may shift as we start to see the beneficial role that vitamin D plays in a multitude of other body functions.

Lindsay Kluge is a Clinical Herbalist & Licensed Dietitian Nutritionist and received her Masters of Science degree in Herbal Medicine from the Maryland University of Integrative Health in 2012. She has been with Richmond Natural Medicine since 2013, and specializes in therapeutic holistic nutrition, circadian rhythm balance and sleep physiology, digestion, and Ayurvedic nutrition. She offers individualized nutrition and herbal medicine consultations that include meal planning support, custom compounded herbal formulas, nutrition guidance and general wellness support.  Learn more about services that Lindsay offers at Richmond Natural Medicine by clicking HERE. “

Comments (2)

Rosa Copeland

Mar 02, 2017 at 3:17 PM

I have diverticulitis and my weight is too low. I am concerned about my bones. How can i get my weight up and not disturb my intestines. I lost at least 25 lbs with this problem. at my age, I am also concerned about my circulation and don’t want more problems with that situation. Help me, if you have any suggestions.
Thank you,


Lindsey Wrable

Apr 21, 2017 at 12:53 PM

Hello Rosa,

Sorry for the late response here. We would probably need to get you scheduled for an appointment with one of our practitioners before we would be able to offer an advice. There is so much to learn about you physically, emotionally, and genetically before making any recommendations. Please give our office a call so we can go over the details with you.

Thank you,
Lindsey Wrable
Richmond Natural Medicine
(804) 977-2634


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