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Bradleys Pharmacist Blog

The Importance of Vitamin D

Posted by Trinity College Dublin - Irish Research Team on

Vitamin D deficiency is

common among the Irish

In what is considered the largest representative study of vitamin D status of older Irish adults, scientists have found widespread vitamin D deficiency among those aged 50 and older.

If you are Irish and older than 50, you stand a fair chance of being deficient in vitamin D, a nutrient that is essential for your bone metabolism, muscle strength, and immune system, among other things. Researchers from The Irish Longitudinal Study on Ageing (TILDA) at Trinity College Dublin have shown in a first-of-its-kind trial that, during the summer period, one in eight older Irish person has blood levels of vitamin D below 30 nmol/L. This is viewed as the threshold to deficiency. In the winter period, the deficiency rate increases to one in four in the same age group.

More common in smokers

The new study, which was recently published in the Journals of Gerontology: Medical Science, looked at vitamin D status and took into account such factors as age, economic status, and lifestyle factors. The researchers could see that vitamin D deficiency increased with age and that it was more common in smokers, people who live alone, and those from lower socio-economic backgrounds.

Applies to many other countries

Based on their observations, the scientists state that the results of their study are of relevance not only to the Irish population but literally all countries that have seasonal sunlight variations. In fact, earlier studies across Europe revealed vitamin D deficiency problems, surprisingly even in countries such as Italy, Portugal and Hungary where sunshine is much more abundant.

Is there a need for supplements?

Our main source of vitamin D is sunlight. We also get a certain amount of the nutrient from foods such as oily fish, egg yolks, and mushrooms. More and more people take vitamin D supplements as a way of ensuring adequate intake levels of the nutrient. A preparation like BioActive D-Pearls from Pharma Nord, which contains vitamin D3 in dissolved in an olive oil formula, appears to be a good choice. So far, two scientific studies have demonstrated that this specific preparation provides excellent bioavailability.


The prevalence of vitamin D deficiency and the determinants of 25(OH)D concentration in older Irish adults: Data from The Irish Longitudinal Study on Ageing (TILDA), The Journals of Gerontology: Series A, glx168,

Avail of 15% off BioActive DPearls 38 online now untill 31st October 2017

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