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Low Vitamin D if little UVB, supplementation helps (Antarctica) – meta-analysis Dec 2021

Vitamin D status and supplementation in Antarctica: a systematic review and meta- analysis

Int J Circumpolar Health 2021 Dec;80(1):1926133. doi: 10.1080/22423982.2021.1926133 Carolina CabalínORCID Icon,Carolina IturriagaORCID Icon,Guillermo Pérez-MatelunaORCID Icon,Denise EcheverríaORCID Icon,Carlos A. Camargo JrORCID Icon &Arturo BorzutzkyORCID Icon
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Vitamin D Life

High Risk category listing contains the following__

65 items in High Risk Category

Those at high-risk of being Vitamin D deficient will require about 1.5X more vitamin D to restore their levels
Those who are at risk due to being obese need about 2X more vitamin D to restore their levels

see also
  Overview Dark Skin
  Overview Seniors
  Overview Obesity
  Overview Pregnancy
  Overview Deficiency
   Shut-in category which has 39 items
   Middle East category which has 151 items

22 Vitamin D Life pages had CLOTH in the title as of July 2022
16+ Vitamin D Life pages with SHIFTWORK etc in the title


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 Download the PDF from Vitamin D Life

Living at high latitudes is associated with vitamin D (VD) deficiency. An ideal setting to study this is the Antarctic continent, which has temporary inhabitants, but the magnitude of the effect of living in Antarctica and the effects of VD supplementation on this population remain unclear. We performed a systematic review and meta-analysis to assess the effect of temporary residence in Antarctica and impact of VD supplementation on VD status of this population. Random‐effects meta‐analyses were performed to assess serum 25-hydroxyvitamin D (25(OH)D) concentration changes after Antarctic residence (13 studies, 294 subjects) and after VD supplementation (5 studies, 213 subjects). Serum 25(OH)D mean difference after temporary residence in Antarctica was -15.0 nmol/L (95%CI: -25.9, -4.2; I²=92%). Subgroup meta-analyses of studies evaluating Antarctic summer and winter stays showed 25(OH)D only decreases when overwintering (winter 25(OH)D change -17.0 nmol/L [95%CI: -24.1, -9.8; I²=83%] vs. summer 25(OH)D change 1.3 nmol/L [95%CI: -14.6, 17.1; I²=86%]). The meta-analysis of VD supplementation studies in Antarctica showed a mean 25(OH)D increase after supplementation of 10.8 nmol/L (95%CI: 3.3, 18.3; I²=88%). In conclusion, VD status significantly worsens after inhabiting Antarctica, particularly when over-wintering. VD supplementation can prevent worsening of VD status and should be considered in this population.


Created by admin. Last Modification: Thursday May 13, 2021 22:03:23 GMT-0000 by admin. (Version 4)

Attached files

ID Name Comment Uploaded Size Downloads
15584 Antartica intervention.jpg admin 13 May, 2021 22.71 Kb 349
15583 Antarctica meta_compressed.pdf admin 13 May, 2021 963.16 Kb 274