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- Vitamin D insufficiency is high in Malaysia: A systematic review and meta-analysis of studies on vitamin D status in Malaysia
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24 studies of deficiency in the Orient - VitaminDWiki - Is 50 ng of vitamin D too high, just right, or not enough as of Dec 2022 had
Vitamin D insufficiency is high in Malaysia: A systematic review and meta-analysis of studies on vitamin D status in Malaysia
Front Nutr . 2022 Nov 18;9:1050745. doi: 10.3389/fnut.2022.1050745
Shamin Mohd Saffian 1 , Nor Aini Jamil 2 , Nor Asyikin Mohd Tahir 1 , Ernieda Hatah 1Purpose: To estimate the vitamin D status of participants residing in Malaysia.
Methods: PubMed, Scopus, Web of Science, and MyJurnal were searched up to June 2022 without language restrictions. Studies that reported the 25-hydroxyvitamin D 25(OH)D concentrations and defined their cut-off for deficiency or insufficiency from healthy participants residing in Malaysia were included. The random effects model was used to pool vitamin D status using established cut-offs of <30, <50, and <75 nmol/L according to age group.
Results: From 299 studies screened, 32 studies were included in the meta-analysis.
The pooled proportion for- <30 nmol/L was 21% (95% CI 9-36, n = 2,438 from 10 studies), while the pooled proportion
- <50 nmol/L was 64% (95% CI 56-72, n = 13,977 from 30 studies), and
- <75 nmol/L was 85% (95% CI 61-100, n = 1,376 from five studies).
Heterogeneity was high (I2 ranged from 98-99%). Higher proportions of vitamin D insufficiency (defined as <50 nmol/L) were found in participants living in the urban areas (compared to rural areas), in females (compared to males), and in Malays and Malaysian Indians (compared to Malaysian Chinese) ethnicities.
Conclusion: More than half of Malaysians have insufficient vitamin D levels, despite being a country that is close to the equator. We strongly urge prompt public health measures to improve the vitamin D status in Malaysia.
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24 studies of deficiency in the Orient This list is automatically updated
- 82% of Chinese hospital staff had less than 12 ng of Vitamin D (65% of patients)– May 2024
- Low vitamin D in Malaysia (85 percent less than 30 ng) – meta-analysis Nov 2022
- Vitamin D Deficiency in children in SE Asia – Oct 2022
- Vitamin D levels in new borns are so low that they are considering supplementing to prevent Rickets (Japan) – July 2022
- Majority of South Asian children and youths have low vitamin D (85 pcnt of neonates) – March 2022
- Half of Mongolian schoolchildren have less than 10 ng of vitamin D – Nov 2021
- Most Chinese have less than 20 ng level of Vitamin D - meta-analysis Aug 2021
- Less COVID-19 infection, mortality in countries with higher Vitamin D (Asia in this case) – May 2021
- Chinese COVID-19 study – 80 pct of severe cases had low Vitamin D, all asymptomatic cases had OK Vit D – Oct 13, 2020
- Half of Chinese adolescents have less than 20 ng of VItamin D - Oct 2020
- Lower Respiratory Tract Infection in Infants reduced 5.9 X by daily 600 IU of vitamin D (China) - March 2020
- Higher Vitamin D in US seniors if older, female, not smoke, but LOWER for each in China – Dec 2019
- Vitamin D levels from lowest to highest: Middle East, China. India, S EU. N EU – Dec 2019
- Vitamin D levels continue to fall in Korea– June 2018
- Beijing women have low vitamin D - 89 percent have less than 20 ng - June 2015
- Vitamin D deficiency in China – only 1 in 18 have even 30 ng, fewer if young or female – Feb 2015
- Vitamin D deficiency is a major global public health problem – Maps Nov 2013
- Chinese have very low vitamin D - July 2013
- Vitamin D in Japanese women: 91 percent have less than 30 ng– 2012
- Beijing extremely vitamin D deficient even in the fall: 10 ng – April 2013
- Virtually all Chinese teens at 30 degree N have less than 30 ng of vitamin D – Feb 2012
- Low levels of vitamin D in Japanese office workers – July 2011
- Hypothesis – China air conditioning disease is the result of less vitamin D – March 2011
- Low D in developing countries – less than 5 ng in some children in China – Oct 2010
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