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Vitamin D levels increased in Saudi Arabia over a decade (more sun or supplements) – Sept 2021

Decreasing prevalence of vitamin D deficiency in the central region of Saudi Arabia (2008-2017)

The Journal of Steroid Biochemistry and Molecular Biology, Vol 212, Sept 2021, 105920, https://doi.org/10.1016/j.jsbmb.2021.105920
Nasser M.Al-Daghria Syed Danish Hussaina Mohammed G.A.AnsariaMalak N.K.KhattakaNajiAljohanib YousefAl-Salehacde Mohammed Y.Al-HarbifShaunSabicoaMajed S.Alokaila


Increased use of D has the following

People have been noticing, and increasing vitamin D (55 items)

Studies are showing increased Vitamin D consumption and associated
      Increased levels of vitamin D PLUS increased health

More people with more than 50 ng is.gd/50ngVitD

 Download the PDF from VitaminDWiki

Adjusted vitamin D levels - in nmol

Fewer in Saudi Arabia with <10 ng and <20 ng

Widespread vitamin D deficiency (serum 25-hydroxyvitamin D < 50 nmol/L) in Saudi Arabia (SA) has been documented, yet a time trend is needed to establish where the prevalence is headed. This study aims to fill this gap.

Study Design and Setting
This cross-sectional series (N = 7360) were conducted in the central region of SA from 2008 to 2017. Participants of all ages were taken from multiple cohorts that included the Biomarker Screening in Riyadh (2008–2010; N = 1460), the Osteoporosis Registry (2014–2017; N = 1225), Gestational Diabetes Mellitus cohort (2014–2017, N = 281), Vitamin D School Project (2011–2017; N = 3039) and Prediabetes cohort (2012–2017; N = 1355) master databases.

Vitamin D deficiency in SA has a 10-year prevalence of 73.2 %. Between 2008–2017, the prevalence of vitamin D deficiency decreased from 87.1% to 64.7% for participants aged 18−40 years (p-trend<0.001), and from 86.2% to 45.7% in participants aged > 40 years (p-trend<0.001). During this period, vitamin D deficiency in females decreased from 80.1% to 69.6% (p-trend<0.001), whereas in males, it decreased from 93.2% to 49.3% (p-trend<0.001). Serum 25(OH)D was observed to have an overall increase of 2.2 ± 0.1 nmol/l (p < 0.001) along with the seasonally adjusted annual increase of 1.3 ± 0.2 nmol/l from 2008 to 2017 (p < 0.001).

The decreasing trend in vitamin D deficiency in SA across all demographics suggests successful public health campaigns over time. It will be interesting to investigate further whether the general improvement in the vitamin D status at the community level also translated in lesser incidences of vitamin d-related diseases over time.

Created by admin. Last Modification: Wednesday June 22, 2022 15:10:32 GMT-0000 by admin. (Version 10)

Attached files

ID Name Comment Uploaded Size Downloads
15723 SA decrease.jpg admin 07 Jun, 2021 41.08 Kb 252
15722 SA age adjusted.jpg admin 07 Jun, 2021 23.39 Kb 250
15721 SA increasing.pdf admin 07 Jun, 2021 908.73 Kb 249