In recent years, many studies have reported that vitamin D deficiencies are surprisingly common worldwide, especially during winter months. As such, many doctors and health professionals have advised supplementing with vitamin D at levels between 2,000 IU and 5,000 IU (where the exact level depends on the individual, his/her location, and health history).

USANA's Vitamin D product is intended to supplement the dosage contained in the Essentials and HealthPak for those who require more than what those products provide.

Most experts agree that normally healthy individuals can safely take this amount of vitamin D without incident. If you are concerned about adding more vitamin D to the level contained in the Essentials or HealthPak, we advise you to consult with your physician who can order specific tests if necessary. Otherwise, USANA's Vitamin D product will be a valuable option for the many individuals who have insufficient levels and cannot get enough vitamin D from multivitamin products alone.