Why Vitamin D is Important for Your Health
Vitamin D, like all nutrients, is essential for life. Our bodies need it from our environment (sunlight and food in this case) to function. It also plays an important role in building and maintaining strong bones. But that’s not all. Every cell in our body has receptors for vitamin D, meaning it can affect virtually everything that happens inside our cells. Research shows that people with higher blood levels of vitamin D live better for longer, with immune and cardiovascular systems that function better.
Higher Vitamin D levels have been linked to improved:
Optimize Your Vitamin D Level in 3 Easy Steps
Exposure to sunlight, eating vitamin D-rich foods and taking supplements does not guarantee that your blood level will be in the desirable range — it must be measured.
Vitamin D test results will give you the information you need to personalize intake.
This recommendation is meant to be a guide for how much supplemental Vitamin D you may need in your diet to reach your Vitamin D blood target, based on research by van Groningen et al. 2010. Up to 4,000 IU per day of supplemental Vitamin D is considered safe and is set as the upper limit in this calculator. The calculation is only valid for body weights up to 125 kg (275 lbs). Due to the seasonal effect on Vitamin D blood levels, we also suggest testing once per season to adjust your supplementation. Please consult your healthcare provider before making changes to your diet or supplementation regimen. Learn More...
Only enter the Vitamin D you are getting through supplements, which you can find on the Nutrient Facts Panel on the back of your supplement. Don't try to guess how much you are getting through food and sunlight.
Supported by science.
Levels change when you change your sun exposure & diet.
Personalized recommendations based off your test results.
Samples are processed in our CLIA certified laborator
Sample analysis traceable to NIST.
Reference ranges show you how you compare to your peers
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The Vitamin D test measure how much your body creates from sun exposure and consumption through your diet or supplementation. Below we provide some information about how to improve your Vitamin D level from the sun, diet and supplements.