Nursing homes and Vitamin D - many studies

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26+ VitaminDWiki pages with NURSING HOME in title

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Vitamin D deficiency in nursing home residents: a systematic review - Nov 2022

Nutrition Reviews, nuac091, https://doi.org/10.1093/nutrit/nuac091
Orlagh Feehan, Pamela J Magee, L Kirsty Pourshahidi, David J Armstrong, Emeir M McSorley

Context
Vitamin D deficiency is a global public health issue, particularly in nursing home residents.

Objective
This review critically summarizes the prevalence of vitamin D deficiency in nursing home residents worldwide. In addition, it outlines the effect of vitamin D intervention, alone or in combination with other nutrients or therapies, on improving vitamin D status and associated health outcomes in nursing home residents.

Data Sources, Extraction, and Analysis
Searches were conducted of electronic databases for articles published from 2010 to May 2021. After screening of the 366 papers initially identified, 58 articles were included.

Conclusions
A paucity of observational studies in nursing homes suggests a high prevalence of vitamin D deficiency ranging from 8% [25(OH)D <25 nmol/L], up to 94% [25(OH)D <50 nmol/L] in some cohorts where supplement use was low. Reported factors associated with deficiency and suboptimal vitamin D status include lack of sunlight exposure, poor dietary intake of vitamin D, limited vitamin D food fortification, frailty, poor renal function, and low use of vitamin D supplements.
Residents who are severely deficient, deficient, or insufficient in vitamin D require remedial vitamin D supplementation prior to maintenance supplementation at doses >800 IU/day. High-dose vitamin D supplementation may reduce respiratory illness; however, supportive data are limited. Oral nutritional supplements, in combination with exercise, may benefit physical function and performance, whereas supplementation with vitamin D– and calcium-fortified foods has been associated with improved quality of life and reduced bone resorption. Globally, vitamin D deficiency is highly prevalent in nursing home residents. There is an urgent need for standardized dietary and supplementation guidelines to prevent deficiency in this vulnerable group.
 Download the PDF from VitaminDWiki   study includes many large tables

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VitaminDWiki – Seniors contains:

431 items in Seniors

see also
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Overview Cancer and vitamin D
Overview Influenza and vitamin D

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Overview Diabetes and vitamin D
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Mortality category listing has 320 items along with related searches

Overview Osteoporosis and vitamin D
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Overview Rheumatoid Arthritis and vitamin D
Frailty and Vitamin D - many studies many studies
Nursing homes and Vitamin D - many studies
13 reasons why many seniors need more vitamin D (both dose and level) - July 2023 has:

1. Senior skin produces 4X less Vitamin D for the same sun intensity
2. Seniors have fewer vitamin D receptor genes as they age
   Receptors are needed to get Vitamin D in blood actually into the cells
3. Many other Vitamin D genes decrease with age
4. Since many gene activations are not detected by a blood test,
   more Vitamin D is often needed, especially by seniors
5. Seniors are indoors more than when they were younger
   not as agile, weaker muscles; frail, no longer enjoy hot temperatures
6. Seniors wear more clothing outdoors than when younger
   Seniors also are told to fear skin cancer & wrinkles
7. Seniors often take various drugs which end up reducing vitamin D
   Some reductions are not detected by a vitamin D test of the blood
   statins, chemotherapy, anti-depressants, blood pressure, beta-blockers, etc
8. Seniors often have one or more diseases that consume vitamin D
   osteoporosis, diabetes, Multiple Sclerosis, Cancer, ...
9. Seniors generally put on weight as they age - and a heavier body requires more vitamin D
10. Seniors often (40%) have fatty livers – which do not process vitamin D as well
11. Reduced stomach acid means less Magnesium is available to get vitamin D into the cells
12. Vitamin D is not as bioavailable in senior intestines
13. Seniors with poorly functioning kidneys do not process vitamin D as well
14. Glutathione (which increases Vitamin D getting to cells) decreases with age
       Seniors category has 431 items