“The Chicago Blackhawk team physicians began diagnosing and treating vitamin D deficiency in all Blackhawk players about 18 months ago. Apparently, most players are on 5,000 IU of vitamin D3 per day. To confirm this assertion, simply ask the Blackhawk organization.
After many losing seasons, last year the Blackhawks came out of nowhere to get to the Western conference finals. This year the Blackhawks are playing even better.
According to my sources, improved athletic performance is only one of the benefits for the Blackhawk players. The other is a reduction in the number and severity of lower respiratory tract infections and a reduction in the number and severity of repetitive use injuries.