athlete's edge faster, quicker, stronger with vitamin D

Picture of the John Cannell's Vitamin D book

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$15.95 US
320 p. paperback

Preview sample chapters

  • chapter 1
  • chapter 2
  • chapter 3
  • chapter 4
  • chapter 5
  • chapter 6

John Cannell, MD

Will vitamin D improve my athletic performance? Read this book and find out how vitamin D works in organs used in athletics, what kind of evidence exists in the scientific literature, and which countries knew what and when.

~ by John Cannell, MD


  • We know books change lives, this one for the better. Vitamin D is one of the best kept secrets of some Olympic coaches. Bill Sardi

  • Book Reviews by Readers

    August 8, 2011: by Admin

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4 Responses to “Book Reviews by Readers”

  1. Bill Sardi Says:
    August 8th, 2011 at 9:09 pm

    We know books change lives, this one for the better. That vitamin D adequacy is demanded for physical and mental health is a piece of missing knowledge that western medicine has conveniently understudied and overlooked. Dr. John Cannell reveals evidence that goes way back in history, to the times when the Greeks conducted their athletic competitions in Olympia in naked sunlight – to optimize their performance. Vitamin D is one of the best kept secrets of some Olympic coaches. Whatever evidence there is that vitamin D improves muscle tone was kept in the closet till Dr. Cannell wrote this investigative text. Only recently did investigators link reduced hip fracture risk with improved balance and muscle function and vitamin D adequacy. Top physical performance, whether it be for standing armies, or hopeful Olympic participants, will require a knowledge of vitamin D. If you compete athletically, don’t recommend this book to your opponents.

  2. John Cannell Says:
    August 9th, 2011 at 5:44 pm

    While athletes will want to improve their timing, strength, balance, etc., please remember grandmother patietnly sitting in her wheelchair in the nursing home.

    While the number of elderly confined to a wheelchair or a bed due to muscle weakness form vitamin D deficiency is unknown, a number of case reports, miraculous in their dramatic effects, means that this book makes a perfect gift for the elderly, 95% of whom are vitamin D deficient and thus, even if not bed or wheelchair ridden, are at a greatly increased risk of falling due to vitamin D deficiency.

    All the elderly need is a single 5,000 IU capsule that, thanks in large part to the decade-long work of the Vitamin D Council, is now available at any pharmacy. give your grandmother both the book and a bottle.

  3. Millard Ferguson Says:
    September 4th, 2011 at 5:10 am

    This book should be read by athletes, coaches, trainers etc. I am a great
    admirer of Dr Cannell, have been for almost 5 years. It is unfortunate
    that his book went to press before the RCT of the group led by Dr Stefan
    Pilz, published late in 2010, came out, showing that 3.1 iu per day of D
    raised the 25OH D levels about 20 ng/ml and raised the median
    testosterone levels of the men taking vitamin D about 20%.This result
    indicates to me that the increased testosterone levels brought about by
    taking vitamin D are the reason for better athletic performance.I hope
    that the Dr Pilz group will repeat the RCT with women. MF

  4. Ivan Says:
    September 23rd, 2011 at 6:28 pm

    After years of being put on testosterone injections for low testosterone, I decided to up my vitamin d and quit the test. shots. The doc said that my body was too used to the testosterone and I would begin to feel terrible and have trouble in the sex department. To my surprise things actually began to get better and I am now waking up every morning feeling like I was 18 again (if you know what I mean?)
    Could it actually be the increased vitamin D? I’m buying the book.

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