USANA's Vitamin D Supplement Shines Bright with ConsumerLab.com Seal of Approval--Setting the Standard for Product Quality

SALT LAKE CITY, Oct. 16, 2025 /PRNewswire/ -- USANA (NYSE:USNA), a global leader in cellular nutrition, is bringing a little more sunshine to wellness. Its top-rated Vitamin D supplement has officially earned the prestigious ConsumerLab.com Seal of Approval—a recognition reserved for products that deliver on purity, potency, and scientific precision. With approximately 42% of adults in the United States considered vitamin D deficient, having a vitamin D supplement on the market you can trust makes all the difference.

"This isn't just a win for our product—it's a win for consumers who deserve the very best," said Brent Neidig, USANA's Chief Commercial Officer. "We're proud to offer a supplement that not only meets expectations but inspires confidence in every tablet. The ConsumerLab.com Seal of Approval is more than a certification—it's a trusted endorsement that reflects our dedication to transparency, quality, and precision."

To earn the Seal of Approval, USANA's Vitamin D supplement was subjected to comprehensive testing for potency, purity, and label accuracy. The product was required to deliver 100% of the claimed amounts of vitamin D3 and vitamin K and demonstrate proper disintegration and bioavailability—benchmarks that align with USANA's own uncompromising internal standards.

All the Sunshine You Need in One Tablet
USANA's maximum-strength Vitamin D is your daily dose of sunshine in a tablet. Whether it's cloudy skies or cozy winter days, this powerhouse supplement can help provide some amazing benefits. USANA's Vitamin D supplement:

• Helps with development and maintenance of bones and teeth*
• Aids in the absorption and use of calcium and phosphorus*
• Provides 50 mcg (2000 IU) of vitamin D per tablet—more than four times the amount of the current recommendation

"At USANA, we don't just meet standards—we redefine them," said Dr. Kathryn Armstrong, USANA's chief scientific officer. "With 2000 IU of vitamin D3 in every tablet, this formula is built on science to support bone strength, immune defense, and nutrient absorption. Trust in your supplements has to be earned—and we earn it with every dose."

The approval from ConsumerLab.com is the latest in a long line of third-party validations that reflect USANA's role as an industry leader in evidence-based nutritional science.

USANA continues to invest in cutting-edge research, state-of-the-art manufacturing, and gold-standard testing protocols—ensuring that every product not only meets expectations but sets a new bar for excellence.

Experience the power of premium nutrition. Visit USANA.com to learn more about how USANA's award-winning products bring science and wellness together.

About USANA

USANA (NYSE:USNA) has been providing premium-quality nutrition and lifestyle products for more than 30 years. From its award-winning supplements manufactured in its FDA-registered facility to its cutting-edge Celavive skincare and healthy living products, USANA is committed to empowering people to live healthier, more vibrant lives.

Discover the future of nutrition at USANA.com or explore the science at AskTheScientists.com.

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SOURCE USANA