Optimizing your level of vitamin D3 may be the single, most important thing you can do to support your health and improve your athletic performance. Vitamin D3 controls or influences almost every physical process in the body; it is essential for peak athletic performance because it controls muscular strength and recovery, physical reaction time, balance and coordination.  Most athletes (even those who train regularly outdoors) are deficient (less than 50 ng/ml) in vitamin D.

Please note: This at-home assessment requires a finger stick/blood spot.