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Published on August 22, 2024

Submit your top-level questions about vitamin D and get your answers directly from the vitamin D researchers and experts

Key Points

  • Because of recent controversy and confusion around vitamin D, GrassrootsHealth, in partnership with the Orthomolecular Medicine News Service, has organized a series of upcoming presentations with the top vitamin D researchers and experts followed by a virtual forum, “Clearing Confusion Around Vitamin D; Vitamin D researchers respond to misguiding guidelines,” scheduled for Monday, September 30th at 7am PT
  • This is an opportunity to submit your questions about vitamin D to the vitamin D researchers and experts!  See below.
  • Donate today!

Measure Your Vitamin D Level


Recent controversial events and resulting publicity surrounding vitamin D has led to much confusion among individuals who are not as educated about vitamin D as most of the followers and participants of GrassrootsHealth. With the release of the updated vitamin D guidelines by the Endocrine Society, which recommends a vitamin D intake of only 600 IU of vitamin D per day in general, and which suggest that vitamin D testing is unnecessary, followed by posts such as those released by Medscape (listed below), the resulting conversation among those who have a deeper understanding of vitamin D and/or who have experienced the difference vitamin D has made in their lives or their patients’ lives has been quite heated.

Because of this controversy and confusion, GrassrootsHealth, in partnership with the Orthomolecular Medicine News Service, has organized a series of upcoming presentations with the top vitamin D researchers and experts followed by a virtual forum, “Clearing Confusion Around Vitamin D; Vitamin D researchers respond to misguiding guidelines,” scheduled for Monday, September 30th at 7am PT.

Sign up here for more information and to stay updated on the release of these presentations and the virtual forum.

Submit Your Questions to the Vitamin D Scientists

Do you have a complex question about vitamin D that you feel needs to be answered by one of our vitamin D scientists/researchers, experts, or medical doctors and practitioners who have successfully and safely implemented vitamin D protocols into their practice? Are your questions topic specific? See the presentations we have scheduled at this time and submit your topic-specific question at the link below, and we can be sure your question is answered as part of that presentation. Other presentations will be scheduled shortly, so feel free to submit other questions as well!

Presentations scheduled include:

  • Immune System Support with Dr. Sunil Wimalawansa
  • Prenatal/Newborn Health with Dr. Carol Wagner
  • Cancer Prevention and Brain Health/Cognition with Dr. William Grant
  • Safety/Toxicity of Vitamin D and addressing the current guidelines with Dr. Reinhold Vieth

Submit Your Questions Here


Consider Donating to Support this Effort!

GrassrootsHealth works tirelessly to fight vitamin D misinformation. Please consider donating to support our efforts in educating individuals and health practitioners about vitamin D.

Donate Here


Medscape Spotlights Vitamin D – In a way that helps or harms?

Medscape recently sent an email dedicated to vitamin D titled New Vit D Guidelines: Change Your Practice?. This email featured articles including:

The articles become even more informative when you read the comments. Take some time to peruse the pages linked above and consider for yourself – why the controversy, emotion, and confusion? Most of you probably know why… many outside of the vitamin D community do not.

We encourage you to share about GrassrootsHealth and the upcoming events with those who might be lost in the confusion about vitamin D.

Another Upcoming Vitamin D Event: Empowering Health with Vitamin D Symposium

You are invited to a symposium with the top experts in vitamin D!

  • Two events (Canada and online) on November 1 and 2… Vitamin D Day 2024.
  • For a list of speakers and the symposium objectives and program, visit https://areyougettingenough.info.

Learn more about the event here.

Measure Your Levels of Vitamin D, Magnesium, and Other Important Nutrients and Markers

Having and maintaining healthy vitamin D, magnesium, omega-3s, zinc and other nutrient levels can help improve your health now and for your future. Choose which to measure, such as your vitamin D, omega-3s, and essential minerals including magnesium and zinc, by creating your custom home test kit today. Take steps to improve the status of each of these measurements to benefit your overall health. You can also track your own intakes, symptoms and results to see what works best for YOU.

Enroll and test your levels today, learn what steps to take to improve your status of vitamin D (see below) and other nutrients and blood markers, and take action! By enrolling in the GrassrootsHealth projects, you are not only contributing valuable information to everyone, you are also gaining knowledge about how you could improve your own health through measuring and tracking your nutrient status, and educating yourself on how to improve it.

How Can You Use this Information for YOUR Health?

Having and maintaining healthy vitamin D and other nutrient levels can help improve your health now and for your future. Measuring is the only way to make sure you are getting enough!

STEP 1 Order your at-home blood spot test kit to measure vitamin D and other nutrients of concern to you, such as omega-3s, magnesium, essential and toxic elements (zinc, copper, selenium, lead, cadmium, mercury); include hsCRP as a marker of inflammation or HbA1c for blood sugar health

STEP 2 Answer the online questionnaire as part of the GrassrootsHealth study

STEP 3 Using our educational materials and tools (such as our dose calculators), assess your results to determine if you are in your desired target range or if actions should be taken to get there

STEP 4 After 3-6 months of implementing your changes, re-test to see if you have achieved your target level(s)

Enroll in D*action and Build Your Custom Test Kit!