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Recent increase in Vitamin D levels in Elite Irish Athletes – Aug 2016

Vitamin D Status and Supplementation Practices in Elite Irish Athletes: An Update from 2010/2011.

Nutrients. 2016 Aug 9;8(8). pii: E485. doi: 10.3390/nu8080485.
Todd J1, Madigan S2, Pourshahidi K3, McSorley E4, Laird E5, Healy M6, Magee P7.


Elite Irish Athletes appear to be supplementing with Vitamin D

  • <20 nanograms of vitamin D: 55% in 2010, but only 14% in 2014
  • Equatorial travel and sun bed use was NOT associated with higher levels of vitamin D
  • Athletes who supplemented were 4 times more likely to have higher vitamin D levels

See also VitaminDWiki

Increased use of D category listing has 55 items along with related searches

Overview Sports and vitamin D has the following summary
Athletes are helped by vitamin D by:

  1. Faster reaction time
  2. Far fewer colds/flus during the winter
  3. Less sore/tired after a workout
  4. Fewer micro-cracks and broken bones
  5. Bones which do break heal much more quickly
  6. Increased VO2 and exercise endurance Feb 2011
  7. Indoor athletes especially need vitamin D
  8. Professional indoor athletes are starting to take vitamin D and/or use UV beds
  9. Olympic athletes have used UV/vitamin D since the 1930's
  10. The biggest gain from the use of vitamin D is by those who exercise less than 2 hours per day.
  11. Reduced muscle fatigue with 10,000 IU vitamin D daily
  12. Muscle strength improved when vitamin D added: 3 Meta-analysis
  13. Reduced Concussions
    See also: Sports and Vitamin D category 273 items

 Download the PDF from VitaminDWiki

Vitamin D deficiency is a global health concern that is prevalent in Ireland. The vitamin D status of elite Irish athletes following implementation of a revised supplementation policy in 2010/2011 has not been explored to date. This study aimed to assess the vitamin D status of elite Irish athletes participating in high-profile sports and establish if equatorial travel, supplementation and/or sunbed use predict vitamin D status. Across Ireland, blood samples (n = 92) were obtained from cricketers (n = 28), boxers (n = 21) and women's rugby sevens players (n = 43) between November 2013 and April 2015. Total 25-hydroxyvitamin D (25(OH)D) concentrations were quantified using LC-MS/MS. Parathyroid hormone and adjusted calcium concentrations were measured by clinical biochemistry. Athletes completed a questionnaire that queried equatorial travel, supplementation and sunbed use. Vitamin D sufficiency (25(OH)D >50 nmol/L) was evident in 86% of athletes. Insufficiency (31-49 nmol/L) and deficiency (<30 nmol/L) was present in only 12% and 2% of athletes respectively.
On average, athletes from all sport disciplines were vitamin D sufficient and 25% reported vitamin D supplementation which was a significant positive predictor of vitamin D status, (OR 4.31; 95% CI 1.18-15.75; p = 0.027).
Equatorial travel and sun bed use were reported in 47% and 16% of athletes respectively however these factors did not predict vitamin D status (both p > 0.05).
Although different cohorts were assessed, the overall prevalence of vitamin D insufficiency/deficiency was 55% in 2010/2011 compared with only 14% in 2013/2015. Targeted supplementation is highly effective in optimising vitamin D status, negating the need for blanket-supplementation in elite cohorts.

PMID: 27517954 PMCID: PMC4997398 DOI: 10.3390/nu8080485

Attached files

ID Name Comment Uploaded Size Downloads
7836 Elite Irish Athletes.pdf admin 16 Mar, 2017 435.96 Kb 639