Category Archives: Vitamin D

Vitamin D and Immunity

Posted on March 30, 2019 by Robert Barrington
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Vitamin D and Depression

Posted on March 24, 2019 by Robert Barrington
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Vitamin D Supplements to Treat Depression

Posted on September 4, 2018 by Robert Barrington

Depression is a serious lifestyle disease that often has no known cause. Treatment of depressive symptoms can be highly difficult as no clear mechanism of development has been explained. This suggests that depression is multifactorial and a large number of … Continue reading →

Posted in 1,25-dihydroxyvitamin D / Calcitriol, 25-hydroxyvitamin D, Depression, Vitamin D | Comments Off on Vitamin D Supplements to Treat Depression

Biochemical Individuality In Response To Vitamin D Supplements

Posted on August 29, 2018 by Robert Barrington

Vitamin D is an important nutritional factor. However, vitamin D is not a true vitamin as a dietary source is not essential. In cases where adequate sunlight exposure is available, vitamin D is not required in the diet. Further, dietary … Continue reading →

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Vitamin D: Skin Versus Diet

Posted on August 28, 2018 by Robert Barrington

Humans obtain vitamin D from two sources. Firstly, humans are able to synthesise vitamin D in their skin. This cutaneous reaction is catalysed by ultraviolet light and results in the production of vitamin D3, also called cholecalciferol. Humans can also … Continue reading →

Posted in 1,25-dihydroxyvitamin D / Calcitriol, 25-hydroxyvitamin D, Cholecalciferol, Ergocalciferol, Vitamin D | Comments Off on Vitamin D: Skin Versus Diet

Vitamin D Toxicity: Part 3

Posted on August 23, 2018 by Robert Barrington

Three main theories have been suggested to explain the toxicity associated with excessive intakes of vitamin D. These theories are described and discussed in part 1 (here) and part 2 (here) of this article. The traditional view is that high … Continue reading →

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Vitamin D Toxicity: Part 2

Posted on August 22, 2018 by Robert Barrington

In my previous article on vitamin D toxicity (here), I explained that vitamin D can become toxic at high doses. The traditional explanation of vitamin D toxicity relates to the ability of high intakes of one vitamin D metabolite, 1,25-dihydroxyvitamin … Continue reading →

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Vitamin D Toxicity: Part 1

Posted on August 21, 2018 by Robert Barrington

Vitamin D should really be considered a hormone rather than a vitamin as a dietary source is not required. Vitamin D can be produced in the skin by the action of ultraviolet light but diet can also contribute to total … Continue reading →

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Bad Weather? Time To Start Taking Vitamin D Again

Posted on August 16, 2018 by Robert Barrington
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What Role Does Vitamin D Play In Depression?

Posted on August 14, 2018 by Robert Barrington

Depression is increasingly common in the Western nations., This may relate to the mentally stressful lives these populations live. Depression can be severely debilitating to the sufferer, and research shows that in many cases depression is a chronic disorder that … Continue reading →

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