John Cannell, Athlete's Edge: Faster, Quicker, Stronger with Vitamin D

"More than three fourths of all Americans are vitamin D-deficient."

John Cannell, Athlete's Edge: Faster, Quicker, Stronger with Vitamin D

"The choice is yours: trust the government or trust Mother Nature."

John Cannell, Athlete's Edge: Faster, Quicker, Stronger with Vitamin D

"It now appears most of us need about 5,000 units a day if we avoid the sun. The government was off by a factor of ten; an ,i>“order-of-magnitude error.”,/i> Mistakes of this scale are rare in medicine."

John Cannell, Athlete's Edge: Faster, Quicker, Stronger with Vitamin D