Can Vitamin D Supplementation Alleviate Depression?

Nowadays, depression is common in adults and vitamin D supplementation was found to alleviate depressive symptoms.

In adults with depression, vitamin D supplementation was found to alleviate depressive symptoms.

Conducted by an international team of researchers, the meta-analysis includes dozens of studies from around the world.

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‘Vitamin D is believed to regulate central nervous system functions the disturbances of which have been associated with depression.’

Depressive symptoms cause a significant disease burden worldwide. The therapeutic efficacy of current antidepressants is often insufficient, which is why further ways to alleviate the symptoms of depression have been sought, for example, from nutritional research.

Vitamin D and Depression

In addition, cross-sectional studies have observed an association between depressive symptoms and vitamin D deficiency. However, previous meta-analyses on the effects of vitamin D supplementation on depression have been inconclusive. In a meta-analysis, results from several different studies are combined and analyzed statistically.

The new meta-analysis on the association of vitamin D supplementation with depression is the largest one published so far, including results from 41 studies from around the world. These studies have investigated the efficacy of vitamin D in alleviating depressive symptoms in adults by randomized placebo-controlled trials in different populations.

The studies included those carried out in patients with depression, in the general population, and in people with various physical conditions. The results of the meta-analysis show that vitamin D supplementation is more effective than a placebo in alleviating depressive symptoms in people with depression. There were major differences in the vitamin D doses used, but typically the vitamin D supplement was 50 to 100 micrograms per day.

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“Despite the broad scope of this meta-analysis, the certainty of evidence remains low due to the heterogeneity of the populations studied and due to the risk of bias associated with a large number of studies,” Doctoral Researcher and lead author Tuomas Mikola of the Institute of Clinical Medicine at the University of Eastern Finland says. The meta-analysis is part of Mikola’s PhD thesis.

“These findings will encourage new, high-level clinical trials in patients with depression in order to shed more light on the possible role of vitamin D supplementation in the treatment of depression,” Mikola concludes.

Quiz on Depression
The World Health Organization reports that depression is one of the main causes of disability affecting about 121 million people worldwide. More tragically, it claims around 850,000 lives every year. Hence, it is important that we understand this affliction to help ourselves or our loved ones to cope and, hopefully, resolve it. How well do you know the facts about depression? Take this quiz and find out.

The meta-analysis was carried out in international collaboration between Finnish, Australian and US researchers.

Source-Eurekalert

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A quick, simple and anonymous self-assessment health tool to assess the level of depression using the famous Zung Self-Rating Depression Scale.