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Latest Posts

Optimizing Your Health with Exposure to Sunshine: A Sunshine Month Review

As public guidelines begin to change, knowledge of the harms of avoiding sunshine exposure must be balanced with the...

Are Your Lifestyle Habits Putting You at Risk for Sunshine and Vitamin D Deficiency?

This quick quiz can help you determine if your daily habits are more or less likely to be supporting...

Memorial Day Sale – 15% Off Home Test Kits

Know your nutrient status. Save 15% by measuring your vitamin D, omega-3s, inflammation, and other important levels now. Spring...

The Top Vitamin D Myths: What’s Fact and What’s Not?

Learn more about several vitamin D misconceptions; these posts answer a majority of the questions we receive on a...

Scientists’ Call to D*action for Public Health

48 vitamin D researchers agree that vitamin D levels of 40-60 ng/ml (100-150 nmol/L) are safe, inexpensive and lead...

Are You Vitamin D Deficient?

There's no single supplement amount that works for everyone. Testing is important to see if you're within the recommended...

837 KB

KNOW “D” NUMBER Patient and Provider Guide to Understanding Vitamin D, Testing & Results Booklet

Download, read and share this educational booklet with a practical guide on how anyone can achieve and maintain their...

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Spotlight

Vitamin D Deficiency Risk Assessment Quiz

What is your risk of having a vitamin D level below recommended? The Vitamin D Deficiency Risk Assessment Quiz...

Vitamin D*calculator™

Calculate the estimated additional intake required to reach your target vitamin D serum level (scientist panel recommendation of 40-60ng/ml).

D*action — Moving Vitamin D and other Nutrient Research Into Practice

Vitamin D projects are currently running globally, for pregnancy, and for breast cancer...

October 27, 2022 0

Vitamin D helps you live longer! World Vitamin D Day – November 2nd

TORONTO, ON (October 25, 2022) – Your personal health and that of your family are the most important things...

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Encinitas, CA 92024

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Tools

D*Calculator
Calculate your estimated additional D intake to reach your target vitamin D serum level. (40-60 ng/ml recommended by our scientist panel).

Serum Level Converter
Convert blood serum level 25(OH)D Unit between ng/mL and nmol/L.

Omega-3 Index Calculator
Calculate your estimated EPA+DHA (Fish Oil) intake to reach your target Omega-3 Index. (8-12% recommended).

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