Vitamin D and Immunity: A Boost For Your Body - Cooper Complete
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Vitamin D and Immunity: What does the Research Say?

Cooper Complete Supplements for Vitamin D and Immunity

Most of us know that vitamin D (also known as the sunshine vitamin) plays an important role in bone health. However, did you know the research on vitamin d and immunity shows people with low levels are more likely to catch a common cold and the flu than those with sufficient amounts?

What else does the research on vitamin D and immunity say?


Vitamin D3 125 mcg (5000 IU) Supplement

Many individuals don't get enough vitamin D from sunlight or through diet. Vitamin D3 form of Vitamin D Supplement for better absorption.

$26.98 Add to cart

Research on Vitamin D and Immunity

One study of 19,000 subjects related to vitamin D and immunity found that people with blood levels below 30 ng/ml were more likely to experience an upper respiratory infection even when adjusting for variables such as season, age, gender, and weight.

People deficient in vitamin D with asthma were five times more likely to get sick than their counterparts with healthy vitamin D levels.

A study published in the American Journal of Clinical Nutrition found a 42 percent decrease in the incidence of influenza in school-aged children by those taking a supplemental dose of 20 mcg (1200 IU) of vitamin D.
In a meta-analysis published in The British Medical Journal of 25 randomized clinical trials totaling 11,321 participants, vitamin D supplementation was found safe and protected against acute respiratory tract infection overall. The patients who were the most deficient and those who had daily vitamin D supplementation (rather than bolus doses monthly) experienced the most benefit. The authors conclude, “Our study reports a major new indication for vitamin D supplementation: the prevention of acute respiratory tract infection. We also show that people who are very deficient in vitamin D and those receiving daily or weekly supplementation without additional bolus doses experienced particular benefit. Our results add to the body of evidence supporting the introduction of public health measures such as food fortification to improve vitamin D status, particularly in settings where profound vitamin D deficiency is common.”

Cooper Clinic recommends a baseline supplementation of 50 mcg (2000 IU) of vitamin D3 taken daily with food.

Improving Vitamin D Absorption

Vitamin D is a fat-soluble vitamin, so it needs a bit of fat to be absorbed.  If you take vitamin D supplements, take them with a meal that contains some healthy fat.  This can increase absorption by 50 percent!

All Cooper Complete multivitamins contain 50 mcg (2000 IU) of vitamin D3. Cooper Complete also offers 25 mcg D3  liquid drops or softgels of D3 of 25 mcg (1000 IU) and 125 mcg (5000 IU).

Are You Vitamin D Deficient?

Vitamin D deficiency is the most common nutritional deficiency worldwide. In general, lower vitamin D levels are a result of an increase in multiple factors, such as:

  • Sun avoidance
  • Using sun protection
  • Skin pigmentation
  • Poor dietary and supplement intake
  • Malabsorption syndromes
  • Obesity
  • Medication use

Do you know your Vitamin D Level?

A simple blood test can provide an answer. Cooper Clinic physicians recommend a 25 hydroxyvitamin D level of 40 ng/ml, but some doctors prefer to see your lab value over 50 ng/ml.

If it is determined that you have low levels, for most people, approximately 1000 IU of vitamin D can increase your level by up to 10 points.

After starting a vitamin D supplement regimen, blood levels should be rechecked in 3 months until the target level of vitamin D is reached and then checked at your annual exam.

Vitamin D in Your Diet

You can find vitamin D in some foods which have been fortified with D, like:

But it can be difficult to meet your needs with food. For many, swallowing a Cooper Complete Vitamin D3 softgel is a more pleasant alternative to decreasing the risk of a  cold.

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Article provided by Cathy Sides, Director of Customer Relations, Cooper Concepts Inc.

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