Mg+Elements (Magnesium, Selenium, Zinc, Copper; Cadmium, Lead, Mercury) & Vitamin D


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


Elements that make up all chemical compounds fall in two general categories in regard to human health – those that are essential (nutritional elements), and those that are toxic (toxic elements).  These elements, both essential and toxic, are found in food, water, supplements, soil, and even in the air (air pollution is a source of toxic elements).

The following are included in this blood spot test:

Vitamin D Blood Spot Test with

Essential/Nutritional Elements:

  • Copper
  • Magnesium
  • Selenium
  • Zinc
  • Zinc:Copper Ratio

Toxic Elements/Heavy Metals:

  • Cadmium
  • Lead
  • Mercury

It is important for essential elements to be within their normal or optimal range in order to fulfill their roles in maintaining health.  When an essential element is out of range, it can lead to disease or sub-optimal functioning.  Some essential elements, such as selenium, copper and zinc, can become toxic when they are too high.

Toxic elements have no known nutritional benefit and are known to interfere with proper functioning of proteins, lipids, and DNA within the cells.  They can also interfere with essential elements by blocking their availability within the body.  The three toxic elements tested with this panel, cadmium, lead and mercury, are in the top four of what the CDC considers the most toxic heavy metals, according to their priority list of hazardous substances.  These three toxic elements are retained in the body making their effects more pronounced with age as they accumulate.

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’ll help us 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!