Vitamin D being used by sports teams to avoid injuries and improve performance – WSJ Jan 2016

Elite Athletes Try a New Training Tactic: More Vitamin D    Wall Street Journal

Pro and college teams, including the Steelers, Red Wings and USC, think the nutrient may help players avoid injury, among other benefits
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Comment by Dr. Matthews on Facebook 3.5 years later (June 2019)

With millions of dollars at stake, Wall Street Journal ( WSJ) was one of the first to catch on to my pioneering work of "vitamin D3 improves athletic performance, reduces athletic injuries, concussions/ CTE, and saves sports teams millions of dollars." As a trauma surgeon at the busiest Level I trauma center in the U.S. ( Grady Memorial Hospital in Atlanta, Georgia), I have seen 30 years of the worst of the worst trauma patients. The Wall Street Journal gets it! Using vitamin D3 saves millions of dollars, keeps sports teams healthy, reduce injuries and concussions, improves athletic performance, and increase chances of winning more games and championships. Not taking vitamin D3 is putting your players and team's health at risk. The NFL, NBA, MLB, MLS, and other professional, college, and sports at all levels will have to sit down and talk to me at some point. I am approximately 10 years ahead of everybody on this subject matter. I pioneered it.

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See also VitaminDWiki

• Vitamin D, trauma, and blacks - Dr. Matthews interview with transcript - Jan 2019
• Billionaires Noticing Dr. Matthews Vitamin D Research and Work - May 2019
• Army Training trying performance readiness bars with 1400 IU of Vitamin D (Dr. Matthews) – Sept 2018

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 282 items