USANA is a Trusted Partner and Sponsor of The Dr. Oz Show


Even the Healthiest Diet Can Lack the Vitamin D You Need for
Strong Bones and Increased Energy



Vitamin D comes from two natural sources: potentially harmful sunlight and a limited number of foods. But nutritional supplementation offers an effective, convenient alternative.


Some studies show a diet lacking sufficient amounts of vitamin D can increase the risk of calcium deficiency and possibly impact mood and energy levels.


USANA Vitamin D contains higher amounts of vitamin D than many competitors. And our product is specifically formulated with vitamin D3, which research suggests is better than competing forms at raising levels of vitamin D in the blood.


USANA’s maximum-strength supplement created to combat vitamin D deficiency.
Support overall bone health with USANA® Vitamin D and Active Calcium Chewable.
Receive maximum bone health benefits with USANA CellSentials™, Vitamin D & Active Calcium Chewable.
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Founded by immunologist and microbiologist Myron Wentz, Ph.D., recipient of the Albert Einstein Award for Outstanding Achievement in the Life Sciences
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USANA’s Salt Lake City, Utah, facility is certified by NSF International and became a registered United States FDA Drug Establishment in 2011
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60+ in-house scientists conduct research and collaborate with institutions like The Orthopedic Specialty Hospital
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Official Health Supplement Supplier of the Women’s Tennis Association
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Official Health Supplement Supplier of the United States Ski and Snowboard Association
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More than 1,000 elite athletes trust their health to USANA

Invest in your well-being today.

USANA makes a wide range of products to keep you healthy.


USANA Executive Director of Science & Health Education Brian Dixon

When reaching for a nutritional supplement, including vitamin D, you have to do your homework, because you really do get what you pay for.”


– Brian Dixon, USANA Executive Director of Science & Health Education

Questions or comments? E-mail us at or call 1-888-889-2525 and mention The Dr. Oz Show.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

It is suggested that you take these products to your physician and secure his/her advice if you intend to change your diet, begin an exercise program, are pregnant or lactating, have allergies, are taking medications, or are under the care of a physician.