USANA Releases New Research On Vitamin D

                   USANA Releases New Research On Vitamin D

Study shows link between vitamin D and inflammation

PR Newswire

SALT LAKE CITY, Jan. 22, 2013

SALT LAKE CITY, Jan. 22, 2013 /PRNewswire/ -- A new study by USANA Health
Sciences, Inc. (NYSE: USNA), in conjunction with The Orthopedic Specialty
Hospital (TOSH), suggests that inflammation may cause a decrease in the body's
vitamin D levels. The study examined levels of vitamin D in twelve adult males
between the ages of 18 and 45 recovering from anterior cruciate ligament (ACL)
surgery.

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"This research brings an awareness to managing inflammation in patients in
order to protect them against vitamin D decreases," says Dr. Tyler Barker,
Clinical Researcher at TOSH. "Preserving or maintaining a healthy vitamin D
level is essential to the function of a variety of physiological systems. We
plan to further investigate the influence of vitamin D supplements on vitamin
D levels during inflammation."

Research for this study, which was published in October 2012 in Cytokine, The
Official Journal of the International Cytokine Society, was funded in part by
USANA Health Sciences, Inc. in Salt Lake City, a leading international
manufacturer of top-quality nutritional products.

"We have a close partnership with TOSH in the scientific studies we conduct on
our products. It was a privilege to be part of this valuable research," says
Dr. Brian Dixon, USANA's executive director of scientific and clinical
affairs. "The results of this study are significant in determining optimum
vitamin D levels during periods of inflammation."

For more information about USANA's products and company, visit USANA.com.

About USANA
Founded in 1992, USANA Health Sciences (NYSE: USNA) is a U.S.-based
nutritional company that manufactures high-quality supplements, personal care,
energy, and weight-management products in theirFDA-registered facilityin
Salt Lake City, Utah. USANA's products, tested by NSF International and used
bymore than600 professional athletes, are developed by the company's
award-winning team of scientists andsold directly to Preferred Customers and
Associates in 18 international markets.Named one ofOutsidemagazine's"Best
Places to Work"for four consecutive years, USANA has received more than 100
state, national and internationalaccolades, includingUtahBest of State,
Stevie Awards, Australian Business Awards,NutriSearchEditor's Choice and
others.Learn more aboutUSANA(www.USANA.com) and theUSANA True Health
Foundation(www.USANAfoundation.org/), stay current with the
officialUSANAblog (www.whatsupUSANA.com), like us on theUSANAFacebook page
(www.facebook.com/USANAhealthsciences), or followUSANAon Twitter
(@USANAinc).

Media Contact: Ashley Collins
Executive Director of PR, Social Media, and Communications
USANA Health Sciences, Inc.
(801) 954-7280
media(at)us.usana(dot)com

About TOSH
TOSH—The Orthopedic Specialty Hospital—is one of the country's premier
facilities for orthopedic care and specializes in: sports medicine, sport
biomechanics, physical therapy, occupational therapy, athletic training,
nutrition, biomechanical engineering, exercise and sport physiology.

SOURCE USANA Health Sciences, Inc.

Website: http://www.usana.com
 
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