Custom Test Kit Builder

From $79 available on subscription from From $74 every 3 months

Build your custom test kit. The base kit includes a vitamin D test. Choose any of following tests to add to your custom test kit.

Hemoglobin A1c (HbA1c)

Measure how healthy your average blood sugar level is.

High Sensitivity C-Reactive Protein (hs-CRP)

Check the level of inflammation in your body with this test.

Magnesium (Mg)

Check your levels of essential elements and for levels of toxicity.

Clear

Omega-3 Index

Check your Omega-3 Index.

Clear

Thyroid Stimulating Hormone (TSH)

Check your TSH levels.

Choose a subscription plan

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Build your custom test kit. The base kit includes a vitamin D test. Choose any of the following tests to add to your custom test kit:

  • Omega-3 Index
  • Magnesium
  • Selenium
  • Zinc
  • Copper
  • Zinc:Copper Ratio
  • Cadmium
  • Lead
  • Mercury
  • Thyroid Stimulating Hormone (TSH)
  • High Sensitivity C-Reactive Protein (hs-CRP)

Magnesium is essential for your brain and bone health, blood glucose control, DNA and genetic material, blood pressure, detoxification processes and for activating vitamin D in your body. It’s believed that about 80% of Americans don’t get enough. And as you age, your body becomes less efficient at absorbing magnesium. This whole blood magnesium test measurement includes the amount of magnesium in your blood cells as well as the plasma/serum, which is a better indicator of magnesium status than the serum magnesium test offered by most doctor’s offices and hospitals. (More information here).

Low levels of magnesium are linked to heart and brain issues, migraines, blood pressure and blood sugar concerns, and insulin resistance.

Much like magnesium, selenium and zinc deficiencies are a widespread concern for people around the world. These important minerals are needed for cell health, immune function, normal healthy lipid levels and a healthy inflammatory response.

Magnesium, selenium, zinc and copper are also a key nutrient in thyroid function and for the production of thyroid hormones. Studies have shown that magnesium may lower thyroid stimulating hormone and improve thyroid function, and have also linked low levels of magnesium to hyperthyroidism. Eight other minerals are also associated with thyroid hormone production, as cofactors in metabolic pathways. Of these eight, zinc, selenium, and copper are also measured with the PLUS Elements test, which also includes toxic minerals lead, cadmium and mercury that can block thyroid hormone receptors and lead to thyroid imbalance.

Thyroid stimulating hormone (TSH) is considered the most sensitive marker for thyroid screening, and is necessary for the stimulation of the thyroid gland and production of thyroid hormones. When the thyroid is taxed or under-active (such as in hypothyroidism), TSH levels increase in an effort to further stimulate thyroid function and the production of thyroid hormones. Even a borderline-underactive thyroid is associated with certain health concerns, such as fatigue, unexplained weight gain, infertility, and mood swings.

Unfortunately, a deficiency in the building blocks of these hormones (such as magnesium, selenium and zinc) may lead to an inability of the thyroid to respond to increased levels of TSH, which may lead to further elevated TSH levels.

C-reactive protein (CRP) is a marker of the amount of inflammation in the body. This CRP test uses a high sensitivity assay, hs-CRP where “hs” means high sensitivity, to detect small elevations in CRP. High levels are seen in acute inflammation and have been correlated with high cardiovascular disease risk, while smaller elevations are indicative of chronic inflammation and chronic diseases, such as metabolic syndrome and diabetes.

A normal hs-CRP level is below 3.0 mg/L. A level between 3.1-10 mg/L is considered elevated, usually seen in chronic inflammation such as that involved with cardiovascular disease risk. An hs-CRP level above 10 mg/ L is very high, more likely indicating an acute inflammatory event due to infection or trauma.

As far as what you don’t want in your body – cadmium, lead and mercury are three of the most potentially harmful metals that can be found in your blood. You’re exposed to them through the air, water, medicines, dental amalgams and certain foods. When your body can’t remove these heavy metals through its normal detoxification processes, they can accumulate and impact your thinking and memory, behavior and organ function.

Once GrassrootsHealth receives your samples (simply use the included return envelope to mail them back), you’ll be emailed a link to your online test results within 7-10 days.

Enrollment with the purchase of a Vitamin D*action blood spot test kit includes:

  • 2-3 lancets
  • Blood spot card(s) for the tests ordered
  • 1 envelope for returning your blood spot card
  • 1 gauze pad, 1 band aid, and 1 alcohol swab
  • Vitamin D*action literature

When you order your kit, you will also be participating as a citizen scientist in the world’s largest vitamin D project to solve the deficiency, D*action. You may choose to enroll for a 1-time test with your health information, or you may even participate in the 5-year project, where you provide your health information along with a vitamin D test every 6 months for the 5-year period. Your participation over the next five years will help build a body of science that will allow for tracking health care outcomes associated with vitamin D levels, and other important nutrients.

Questionnaire & Citizen Science

Becoming a participant of GrassrootsHealth means that you are joining thousands of people in collaborating with us on nutrient research. Citizen science welcomes everyone’s participation in the discovery and sharing of scientific knowledge. As a citizen scientist, you can help everyone gain a better understanding of the role of nutrients in health and disease, and use the results to help inform public health officials to create change. Additionally, you can use your results to make informed decisions about nutrients that affect your health.Here’s to the power of citizen science!

GrassrootsHealth could provide testing without asking you to fill out a questionnaire, but without that data we would have no way of measuring an effect. It would be a public service, especially back in 2009 when we started and it was hard to get a doctor to order a vitamin D test. But we founded GrassrootsHealth for more than testing. We founded GrassrootsHealth based on science, by first gathering together over 40 vitamin D researchers to form a panel of experts, then having those researchers come to a consensus on what the optimal vitamin D blood levels should be for general good health. The consensus they reached was for vitamin D levels to be in the range of 40-60 ng/ml (100-150 nmol/L). By asking about health, nutrient supplementation, and other exposures we can connect each participant’s blood levels with their lifestyle and health status and help guide scientific answers to personal questions. In short, your data matters!

Learn more about the importance of the questionnaire.

Your individual health data will be kept confidential except for where required by law. The accumulated data will be stored in a secured, encrypted database operating behind a firewall, and password protected. The only person that will have access to the identified data will be our primary data biostatistician. This will be for purposes of accessing hospital records as indicated and released by participants, or for clarification of entries in the health questionnaire. The de-identified health information is shared so the research can be conducted, properly monitored and published. The Principal Investigator and other researchers will access the data in a de-identified form. For all analyses only an arbitrary number will identify the participant.
Vitamin D3 (cholecalciferol) is a prohormone produced endogenously from the action of ultraviolet light on its precursor, 7-dehydrocholesterol, in the skin, and is also commonly found in over-the-counter vitamin D supplements. Vitamin D2 (ergocalciferol) does not occur naturally, but is manufactured commercially by exposing ergosterol to ultraviolet light, and is the predominant form obtained by prescription in the US. Both are hydroxylated in the liver to form their 25-hydroxy metabolites (25(OH)D2 and 25(OH)D3), the major circulating form of vitamin D in the blood and the commonly accepted measure of vitamin D status. The blood spot assay is performed using liquid chromatography/ tandem mass spectrometry (LC-MS/MS), the same method used by the CDC Nutrition Laboratory to obtain accurate 25(OH) D values. Method accuracy is ensured by standardization with the NIST vitamin D standard reference materials. Circulating 25(OH)D3 levels reflect endogenous production as well as vitamin supplementation, whereas 25(OH)D2 levels reflect the results of Vitamin D2 supplementation. Vitamin D2 is believed to be less bioactive than vitamin D3. Vitamin D deficiency is linked with many chronic diseases, including autoimmune diseases, diabetes, cardiovascular disease, and cancer. Optimal levels of 25(OH)D3 are 32—100 ng/mL.