Category Archives: 1,25-dihydroxyvitamin D / Calcitriol

Vitamin D Supplements to Prevent Osteoporosis

Posted on October 24, 2023 by Robert Barrington

Ageing is associated with a reduced density of bone, and this reduced density increases the risk of fractures. Women are particularly susceptible to this reduced bone mass which implies that the condition of osteoporosis may be heavily dependent on hormone … Continue reading →

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The Three Best Ways To Improve Vitamin D Status

Posted on March 27, 2020 by Robert Barrington

Vitamin D is important because it is converted to the hormone 25-hydroxyvitamin D in the liver. The 25-hydroxyvitamin D is then further converted to 1, 25-dihydroxyvitamin D in the kidney, and this form is also hormonally active. The active firms … Continue reading →

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Vitamin D and Mood Disorders

Posted on January 16, 2020 by Robert Barrington

Vitamin D is increasingly being shown to possess a wide range of cellular effects. These effects are known to include changes to brain chemistry, the implications of which are not fully understood. It is suspected that vitamin D plays a … Continue reading →

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Vitamin D and Bone Pain

Posted on January 15, 2020 by Robert Barrington

Vitamin D is an essential nutrient, that can be considered a hormone. Vitamin D is required for a wide range of functions in the body, one of which is the maintenance of correct calcium homeostasis. Chronic low levels of vitamin … Continue reading →

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Do Vitamin D Supplements Relieve Depression?

Posted on July 26, 2019 by Robert Barrington

Evidence suggests that there is an association between poor vitamin D status and mood disorders. In particular, there appears to be a greater risk of depression in those with low levels of the active metabolite of vitamin D in their … Continue reading →

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Should You Take Vitamin D Supplements During the Summer?

Posted on July 8, 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 →

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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 →

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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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