Vitamin D supplementation and fracture risk: Evidence for a U-shaped effect
Maturitas, 2020 Nov;141:63-70. doi: 10.1016/j.maturitas.2020.06.016
Panagiotis Anagnostis 1, Julia K Bosdou 2, Eustathios Kenanidis 3, Michael Potoupnis 3, Eleftherios Tsiridis 3, Dimitrios G Goulis 4
This is one of many studies which have found that you should reduce Calcium if have high level of vitamin D
It appears that there is less/no problem when taking a Calcium from plants or take it multiple times per day
Falls and Fractures category contains the following
230 items in FALLS and FRACTURES - Vitamin D and Calcium cost-effectively reduce falls and fractures – April 2019
- see also Overview Seniors and Vitamin D
Falls
- Deaths due to falls doubled in just a decade (age-adjusted, perhaps decreased vitamin D) – June 2019
- Preventing Falls in Older Adults – Vitamin D combination is the best - JAMA Meta-analysis Nov 2017
- Falls cut in half by 100,000 IU vitamin D monthly - RCT 2016
- Falls reduced by a third if achieved 40 ng level vitamin D– RCT Sept 2018
- Note: Took 6 months to get to that level. Most trials last only 3 months
- Vitamin D prevents falls – majority of meta-analyses conclude – meta-meta analysis Feb 2015
- Falls reduced by Vitamin D: 13 percent reduction if more than 700 IU – review of 38 trials – Aug 2022
Fracture
- Vitamin D and fractures – 24 meta-analyses and counting – Dec 2014
- Low trauma bone fractures in seniors – considering Vitamin D loading dose for all, without testing – Nov 2019
- Vitamin K (any amount and any kind) reduced bone fractures by 24 percent – meta-analysis – May 2019
- Hip fracture in VitaminDWiki title (67 as of Aug 2022)
Items in both categories Fractures/Falls and meta-anayslis are listed here:
- Increased risk of fracture if high level of Vitamin D (if continue to take Calcium) – umbrella analysis of meta-analyses Nov 2020
- Hip fractures not prevented by Vitamin D (800 IU daily or large quarterly or annual doses) – meta-analysis – Dec 2019
- Vitamin K (any amount and any kind) reduced bone fractures by 24 percent – meta-analysis – May 2019
- Vitamin D not help fractures and falls if not vitamin D deficient – meta-analysis Oct 2018
- Fractures not reduced by small amounts of vitamin D - meta-analysis Dec 2017
- Preventing Falls in Older Adults – Vitamin D combination is the best - JAMA Meta-analysis Nov 2017
- Hip fracture 58 percent more likely if low vitamin D – meta-analysis March 2017
- Fracture risk reduced somewhat by 800 IU of vitamin D and Calcium – meta-analysis Oct 2015
- Acute fracture patients – 70 percent were vitamin D deficient – meta-analysis Sept 2015
- Falls not prevented by vitamin D given every 3 months or less often – meta-analysis Jan 2015
- Vitamin D prevents falls – majority of meta-analyses conclude – meta-meta analysis Feb 2015
- Vitamin D and fractures – 24 meta-analyses and counting – Dec 2014
- Bone fractures reduced by a minimum of 800 IU vitamin D and Calcium – meta-meta-analysis March 2014
- Fractures reduced with any amount of vitamin D and some Calcium - Cochraine April 2014
- Fallers often had less than 20 ng of vitamin D – meta-analysis April 2014
- Hip fractures greatly reduced by sunshine, vitamin D, and vitamin K – meta-analysis Sept 2012
- Vitamin D may prevent falls and fractures without Calcium – an overview of 9 meta-analysis – Oct 2012
- Hip fractures reduced 30 percent with 800 IU of vitamin D – meta-analysis July 2012
- Vitamin D reduces falls – meta-analysis Oct 2011
- Active form of vitamin D (calcitriol) cut in half the fractures following organ transplant – meta-analysis Aug 2011
- 1000 IU minimum to decrease falls and fractures Swiss - 2009
- Meta-analysis of falls and 800+ IU of vitamin D found good results – June 2010
- 800 IU vitamin D reduces falls - Dec 2009
Download the PDF from sci-hub via VitaminDWiki
During the last decade, a cascade of evidence has questioned the anti-fracture efficacy of vitamin D supplementation. In general, vitamin D status, reflected by serum 25-hydroxy-vitamin D [25(OH)D] concentrations, seems to predict fracture risk and bone mineral density (BMD). Despite the well-documented detrimental effect of vitamin D deficiency on bones, vitamin D monotherapy does not seem to reduce the risk of fractures. On the other hand, high vitamin D doses, either at monthly (60,000-100,000 IU) or daily intervals (>4000 IU), appear to be harmful with regard to falls, fracture risk and BMD, especially for people without vitamin D deficiency and at low fracture risk. Therefore, a U-shaped effect of vitamin D on the musculoskeletal system may be supported by the current evidence. Vitamin D supplementation could be of value, at daily doses of at least 800 IU, co-supplemented with calcium (1000-1200 mg/day), in elderly populations, especially those with severe vitamin D deficiency [25(OH)D <25-30 nmol/L (<10-12 ng/mL)], although its anti-fracture and anti-fall efficacy is modest. Good compliance and at least 3-5 years of therapy are required.
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