There was a song that was on a 78 record that I had as a child, The Churkendoose (yes, I’m really that old..)

Well It depends upon, begins and ends upon,
It depends on how you look at things!

How nutrient trial design affects results and outcome

The vitamin D research community is literally ‘shooting itself in the foot’ by reporting trial results solely on dosage groups without also always showing the serum level analyses. The dose/response variation as shown in our research and that of others shows a very large variation, a factor of six in terms of response. One person can take 2000 IU/day and get to 20 ng/ml (50 nmol/L), another can take exactly the same amount, 2000 IU/day, and get to 120 ng/ml (300 nmol/L).

If, for example I had two people taking 2000 IU/day and one got to 20 ng/ml, the other to 120 ng/ml, I’d tell you the average was 70 ng/ml.

If we had another group taking 4000 IU/day and both got to 70 ng/ml, I’d tell you the average was 70 ng/ml.

We’d then say that there was ‘no difference’ in the two doses. Really? And, we’d expect no significant difference in the health outcomes?

Please look at the chart below to see how that scenario looks with the Hollis/Wagner pregnancy study (left hand side of the chart shows results by intake).

Click to Download & Print

An almost ‘flat’ health outcome chart when looked at by intake level.When we look at the same patients by serum level vs intake, there is a very large difference.


Carole Baggerly, Director

How can I track my vitamin D level and health?

To help you track your nutrient levels and health outcomes, GrassrootsHealth has created an online tracking system called myData-myAnswers. You can track details about your supplement use and nutrient levels. You can also track many pre-set health conditions, such as cognitive function, or add your own custom trackers. This will help you discover how your nutrient levels impact your health. Check it out today!

Click Here

Please share this information and link with your friends, family who could be at risk. Getting all your loved ones up to the healthy levels of 40-60 ng/ml (100-150 nmol/L) of vitamin D and to an Omega-3 Index level of at least 8% could lead to a decreased risk of depression this winter, AND, more happiness!

Order a Vitamin D test for you/them today!

Important Message

NEWS ALERT: States, Governments Acknowledge the Need for Vitamin D to Build the Immune System; Vitamin D*action has achieved a major milestone of ‘Moving Research into PRACTICE’!

EVERYONE needs to know about the benefits of vitamin D... We need your help to do this. Donating $25.00 today will positively affect millions of lives!

We will take this opportunity to use our extensive network to get pertinent information on vitamin D to the new US COVID Panel as well as local and state government representatives around the world.

Donate $25 today to help support this outreach effort (and, let us know if your employer could match the donations made by individuals from now until January 1, 2021!). You can also "text-to-give" by simply texting Daction to 44321.

Donations made through GiveLively are received in full by GrassrootsHealth.

What Does it Take YOU to Get Your D to 40 ng/ml (100 nmol/L)?

Did you know your health could be greatly affected by making sure you have a vitamin D level of at least 40 ng/ml (100 nmol/L)? Help us help you.

STEP 1 - Do you know what your vitamin D level is? If not, be sure to test today to find out.

STEP 2 – Determine your target level. Are you at your target level? Experts recommend a level of at least 40-60 ng/ml (100-150 nmol/L).

STEP 3 – Need to boost your level? Use the D*calculator to see how much vitamin D it may take to reach your target. Opt for the Loading Dose for a quicker boost.

STEP 4 – Optimize how your body absorbs and utilizes vitamin D with co-nutrients and these simple steps.

STEP 5 – Re-Test! This is an important step to make sure you have reached your target level, and to ensure you are not taking too much! Re-testing after 3-4 months is recommended.

STEP 6 – Adjust, Repeat…

Give your immune system the nutrients it needs to support a healthy you and protect yourself from unnecessary diseases, especially COVID-19.


The first Randomized Controlled Trial on vitamin D and COVID-19 has shown a 96% lower risk of ICU admission for those receiving vitamin D (as 25(OH)D to quickly boost vitamin D blood levels) along with the standard treatment, compared to those receiving standard treatment alone.

These results support many previous observational studies showing a relationship between vitamin D levels and intake and COVID-19 severity.

Review the Latest Nutrient Research for COVID-19

GrassrootsHealth Nutrient Research Institute has launched the new Immune Boost project with the use of our myData-myAnswers nutrient health system that nearly 15,000 people are already using for their health. Specific markers that influence immune health are suggested for testing as part of this project including:

  • Vitamin D
  • Omega-3 Index
  • Essential elements magnesium, selenium, and zinc
  • hsCRP

Our goal is to demonstrate how one can use the Nutrient Research Model established by Dr. Robert Heaney to show the effect of vitamin D serum levels of at least 40 ng/ml (100 nmol/L) on risk reduction for all ethnicities in the population. Status and intake of other nutrients will also be analyzed for any type of relationship to immune status and symptom severity. Join the project today!

Please let us know if you're interested in helping sponsor this project.

CLICK HERE for updates and new information about the project.

Through GrassrootsHealth Nutrient Research Institute, you can also test your essential elements magnesium, copper, zinc and selenium, toxins such as lead, mercury and cadmium, as well as your omega-3 levels, inflammation levels and thyroid stimulating hormone (TSH) level. Find out your levels today! Log on to the test selection page (click the link below) to get your tests and see for yourself if your levels can be improved.

Make sure you track your results before and after, about every 6 months!

Click Here to Access the Test Page

How can I track my nutrient intake and levels over time?

To help you track your supplement use and nutrient levels, GrassrootsHealth has created the Personal Health Nutrient Decision System called

For each specific supplement, you can track what days you take it, how much, and many other details.  This will help you know your true supplemental intake and what patterns of use work for you to reach and maintain optimum nutrient levels. Check it out today!