IOC Consensus Statement: Dietary Supplements and the High-Performance Athlete.
Int J Sport Nutr Exerc Metab. 2018 Mar 1;28(2):104-125. doi: 10.1123/ijsnem.2018-0020. Epub 2018 Mar 28.
Maughan RJ1, Burke LM2,3, Dvorak J4, Larson-Meyer DE5, Peeling P6,7, Phillips SM8, Rawson ES9, Walsh NP10, Garthe I11, Geyer H12, Meeusen R13, van Loon L3,14, Shirreffs SM1, Spriet LL15, Stuart M16, Vernec A17, Currell K18, Ali VM19, Budgett RGM19, Ljungqvist A20, Mountjoy M15, Pitsiladis Y19, Soligard T19, Erdener U19, Engebretsen L19.
Unfortunately the IOC consensus did not suggest enough Vitamin D to really help - especially for indoor athletes
- Sports benefits from up to 50 ng of Vitamin – meta-analysis - Nov 2012
- Vitamin D - Legal doping for sports professionals, amateurs and their families (book in German) 2020
- Elite Athletes do well with weekly 35,000 IU of Vitamin D – RCT Feb 2017
- Which is 5X more Vitamin D than IOC consensus suggests
- Athletic performance and recovery benefits of Vitamin D (4000-5000 IU and Vitamin K) – Aug 2015
- Collegiate Swimmers getting 4000 IU of vitamin D had fewer injuries – March 2013
- Muscle fatigue reduced with 10,000 IU of vitamin D – March 2013
- NHL discovers Vitamin D – their ideal is 40-120 ng – 2016
- Recent increase in Vitamin D levels in Elite Irish Athletes – Aug 2016
- Vitamin D and CBD both benefit sports and are not considered to be doping – Sept 2019
- Olympic Athletes and vitamin D - clippings 2009-10
Sports category starts with
Sports benefits from up to 50 ng (click on chart for details)
see also:
Overview Sports and vitamin D Concussions
Military Muscle Overview Fractures and vitamin D
Vitamin D supplementation increases strength of lower muscles – Meta-analysis April 2019
Athletes helped by weekly 50,000 IU Vitamin D – RCT Aug 2019
College swimmers helped by daily 5,000 IU of Vitamin D in the fall – RCT Feb 2020
Shin splints decrease with vitamin D
Less muscle inflammation after exercise if high level of Vitamin D (50 ng) -July 2021 50 ng
Only 1 NCAA basketball player getting 10,000 IU vitamin D daily achieved 50 ng goal – Jan 2020 50 ng
NCAA trainers are getting on board the Vitamin D train (40-50 ng)– Nov 2019 50 ng
Is 50 ng of vitamin D too high, just right, or not enough 50 ng
The only independent predictor of aerobic power: Vitamin D - 2021
Olympic Committee consensus on Vitamin D, Omega-3, Zinc, etc– May 2018 not consdered "doping"
Some Foot and ankle problems are treated by Vitamin D – many studies
Typical stress fracture during US Navy training cost 14,953 dollars, most had less than 40 ng Vitamin D - June 2022
Vitamin D trials by military – all 4 found benefit – review Sept 2019
Vitamin D supplementation increases strength of lower muscles – Meta-analysis April 2019
Omega-3 helps muscles - many studies
Overview Sports and vitamin D has the following summary
Athletes are helped by vitamin D by:
- Faster reaction time
- Far fewer colds/flus during the winter
- Less sore/tired after a workout
- Fewer micro-cracks and broken bones
- Bones which do break heal much more quickly
- Increased VO2 and exercise endurance Feb 2011
- Indoor athletes especially need vitamin D
- Professional indoor athletes are starting to take vitamin D and/or use UV beds
- Olympic athletes have used UV/vitamin D since the 1930's
- The biggest gain from the use of vitamin D is by those who exercise less than 2 hours per day.
- Reduced muscle fatigue with 10,000 IU vitamin D daily
- Muscle strength improved when vitamin D added: 3 Meta-analysis
- Reduced Concussions
See also: Sports and Vitamin D category278 items
Items in both categories Sports and Omega-3 are listed here:
- Omega-3 helps muscles - many studies
- Handgrip strength increased 9 percent in college athletes with 8 weeks of Omega-3 – RCT Feb 2022
- Omega-3 improves elderly muscles – 2 meta-analyses
- Less muscle loss associated with eating more fish (Omega-3, Vitamin D, Magnesium, etc) – Jan 2020
- Omega-3 helps muscles – Aug 2019
- Muscle loss (sarcopenia) may be both prevented and treated by Omega-3 – Feb 2019
- No NCAA player had a healthy Omega-3 index – Jan 2019
- Muscle fatigue 4X less likely in rugby players getting Omega-3 and protein – July 2018
- 2X less muscle soreness after exercise if Omega-3 index higher than 4 – RCT 2014
- Olympic Committee consensus on Vitamin D, Omega-3, Zinc, etc– May 2018
- During NFL season – Omega-3 down by 2.5 points while Vitamin D up by 9 ng – March 2018
- Omega-3 helps muscles and reduces inflammation, lipids, and insulin – Nov 2015
- Mild Traumatic Brain Injury prevented with Omega-3, Resveratrol, etc (in rats) – Oct 2017
- Large single-dose of Omega-3 reduced expected muscle damage – Feb 2017
- Capillary blood flow increased with Omega-3 by increasing deformability of blood cells – July 2015
- Football Brain injuries prevented by Omega-3 – RCT Jan 2016
- Senior muscles increased somewhat with Omega-3 – RCT July 2015
- Traumatic brain injury treated by Vitamin D Progesterone Omega-3 and glutamine – May 2013
- Zinc and Vitamin D category listing has
89 items along with related searches - Book on Sports and vitamin D - Aug 2011
- Is 50 ng of vitamin D too high, just right, or not enough
- Vitamin D supplementation guidelines (adults – 50,000 IU per week) – Feb 2017
50,000 IU/week is 7X more than IOC consensus of 1,000 IU/day Download the PDF from VitaminDWiki
A few of the many tables in the IOC consensus
Nutrition usually makes a small but potentially valuable contribution to successful performance in elite athletes, and dietary supplements can make a minor contribution to this nutrition program. Nonetheless, supplement use is widespread at all levels of sport. Products described as supplements target different issues, including the management of micronutrient deficiencies, supply of convenient forms of energy and macronutrients, and provision of direct benefits to performance or indirect benefits such as supporting intense training regimens. The appropriate use of some supplements can offer benefits to the athlete, but others may be harmful to the athlete's health, performance, and/or livelihood and reputation if an anti-doping rule violation results. A complete nutritional assessment should be undertaken before decisions regarding supplement use are made. Supplements claiming to directly or indirectly enhance performance are typically the largest group of products marketed to athletes, but only a few (including caffeine, creatine, specific buffering agents and nitrate) have good evidence of benefits. However, responses are affected by the scenario of use and may vary widely between individuals because of factors that include genetics, the microbiome, and habitual diet. Supplements intended to enhance performance should be thoroughly trialed in training or simulated competition before implementation in competition. Inadvertent ingestion of substances prohibited under the anti-doping codes that govern elite sport is a known risk of taking some supplements. Protection of the athlete's health and awareness of the potential for harm must be paramount, and expert professional opinion and assistance is strongly advised before embarking on supplement use.
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