Higher Vitamin D levels have been linked to improved:
Order your Vitamin D Test today.
The National Health and Nutrition Examination Survey (NHANES) from 2005 to 2006 revealed 41% of adults had low levels of vitamin D defined as less than 20ng/mL.
Vitamin D is known to play important roles to maintaining our bone health by helping increase calcium absorption.
Other factors such as genetics, weight, age, ethnicity, and lifestyle may also effect your Vitamin D level.
Don't guess when you can test.
How it Works
Simple finger poke. No blood draw needed. Collect your sample at home.
Choose the test service you would like. The sample collection kit typically arrives in 3 to 5 days.
Follow the simple kit instructions to collect your sample from the comfort of home. Once you have your sample collected mail it back to our lab with the pre-paid envelope.
In 2-4 weeks you will receive an email letting you know your personalized results are ready.
Research shows higher vitamin D blood levels are beneficial.
Vitamin D and the risk of cardiovascular disease
Serum 25(OH)D concentration was inversely associated with total cardiovascular disease events and cardiovascular disease mortality from the observed studies.
Vitamin D and Risk for Muscle Decline
Low baseline 25(OH)D may contribute to muscle strength decline in the very old and particularly in men.
Vitamin D Improves Artery Stiffness
Arterial stiffness was improved by vitamin D3 supplementation in a dose-response manner in overweight African Americans with vitamin D deficiency.
Low Vitamin D increases risk of hospitalization
Deficiency of Vitamin D was associated, independently of known heart failure risk factors, with an increased risk of hospitalization for heart failure in an Italian adult population.
Your results. Supported by science.
Actionable: Vitamin D levels start changing as soon as you change your sun exposure and diet.
Personalized: Personalized recommendations based off your test results.
Certified: All samples are processed in a central certified laboratory.
Validated: The validated and standardized sample processing methodology traceable to National Institutes of Standards and Technology (NIST).
Compare: Percentile ranks show you how you compare to your peers.
How can I increase my Vitamin D level?
Your Vitamin D test gives you a measure of the vitamin d 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.
From the Sun
Vitamin D3 is the primary raw material to make active and useable vitamin D. Vitamin D3 is produced when our body is exposed to sunlight (ultraviolet B radiation sunlight). Our bodies are amazingly efficient when it comes to producing vitamin D3; brief sunlight exposure of the arms and face will enable our body to produce 200 international units (IU) of vitamin D3. The precise amount of vitamin D3 produced will vary depending on factors such as skin type, geographical location, season, and time of the day. For example, an individual will produce 400 IU of vitamin D3 in Boston, Massachusetts within 8 minutes of sunshine whereas the same individual may only need 6 minutes if they are in Miami, Florida. Not a huge difference but something to celebrate if you are reading this from South Beach.
Correction of vitamin D deficiency is quite simple with the use of over-the-counter vitamin D supplementation. The American Geriatrics Society recommends vitamin D dose of 800 to 1000 IU by oral supplementation daily to reduce the risk of falls and fractures. Most pharmacies carry vitamin D in doses of 400 IU to 2000 IU per tablet.
Other formulations such as a liquid formulation is available for children and an injection for people with gastrointestinal absorption issues. People with kidney or liver disease will need to see a specialist because the over-the-counter vitamin D is the inactivated form and in the presence of kidney or liver disease, our body cannot convert this inactivated form to its active metabolite (our liver and kidneys convert vitamin D to its active form).
There are virtually no side effects with vitamin D because it is a natural hormone. The Institute of Medicine recommends an upper limit of 4000 IU of vitamin D per day. In cases where there is vitamin D toxicity, calcium levels may be too high but this is extremely rare.
Vitamin D can come from our diet but there are very few foods in nature that contain vitamin D (e.g. fatty fish liver is the best source but who wants to eat that). The best sources of Vitamin D in nature come from fatty fish (salmon, tuna, mackerel) and small amounts are also found in cheese, egg yolks, sardines and fortified foods.