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So far, in our vitamin D myth busting series, we have dispelled myths such as those claiming vitamin D can become toxic when stored in fat, that toxicity is a concern when taking more than the official RDA of 600 IU/day, and discussed the way vitamin D is involved in the intricate balance with other nutrients. Today’s myth – that taking vitamin D causes kidney stones – is based on the interplay of vitamin D with another nutrient, calcium. However, not only has the idea has been debunked with the findings of several research studies, but the opposite seems to be true!

*Please Note: Individuals with certain conditions, such as primary hyperparathyroidism, sarcoidosis, tuberculosis, and lymphoma, may be hypersensitive to vitamin D supplementation and may need to be more cautious when supplementing, or work with a health care provider. If you feel you have negative side effects from vitamin D supplementation, please talk to your doctor. These conditions will be discussed in more detail in an upcoming post.

How do you get kidney stones?

Kidney stones are hard, crystallized deposits made of salts and minerals, such as calcium and phosphate, which form inside the kidneys. Often these stones must be passed out in the urine and can become stuck in the urinary tract which results in incredible pain. There are many known causes for these deposits, including drinking too little water and eating foods high in purines – a chemical compound that occurs naturally in your body but is also found in foods and drinks, such as beer and other yeasty beverages.

Some doctors think that because vitamin D helps the body to absorb calcium, higher intake of vitamin D can lead to kidney stones made of calcium. But there is something missing about this claim: evidence. Simply put, results from dozens of well-designed studies provide no evidence that vitamin D contributes to kidney stone formation.

Research to the Rescue

A 2013 study by a research team from Creighton University, GrassrootsHealth, and the University of California, San Diego School of Medicine looked at 2,012 adults and found no association between vitamin D levels in the range of 20 to 100 ng/ml and the incidence of kidney stones. Instead, age, weight, and gender were important factors for kidney stone formation.

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A 2016 meta-analysis (a method for combining data from multiple studies) by New Zealand researchers included 19,833 participants and again found no connection between vitamin D supplementation dose or duration and kidney stones.

The largest study to look at vitamin D and the risk of kidney stones came out of Harvard Medical School. These scientists studied a whopping 45,616 individuals over a 14 year period. What did they find? You got it – no increased risk of kidney stones with vitamin D.

Not only do high levels of vitamin D not cause kidney stones, two more recent case-controlled studies have shown that people with low levels of vitamin D are more than twice as likely to develop a kidney stone! In other words, higher vitamin D levels may protect you from a kidney stone. One was a study by Girón-Prieto et al. involving 366 patients. The other, by Ticinesi et al., found that overall, patients who developed kidney stones had lower vitamin D levels, and suggested that vitamin D deficiency be reconsidered as a potential cause. These new studies reveal that the old myth of vitamin D leading to kidney stones is unfounded.

If the fear of kidney stones is preventing you from taking vitamin D supplements, rest easy and take the supplements you may need to achieve a healthy vitamin D level.

Is it true?

Our goal with this “Vitamin D Myths” series is to provide information and resources to answer the question, “Why should I care about vitamin D?” and to help dispel the myths and misconceptions surrounding it that may be preventing you and others from accepting it as an essential component to health. We will also discuss other nutrients essential to the function of vitamin D (and vice versa) within the body that should not be ignored.

Vitamin D is necessary for multiple functions within the body and should not be ignored, but has the hype about vitamin D and its role in the body’s response to COVID-19 been over-exaggerated? What concerns about vitamin D are valid, and which are not? We want to provide you with evidence based information to help you decide what vitamin D action to take, if any, for your own health.

We want to hear from you!

Is there a particular ‘myth’ you have heard about vitamin D? Or, something you have read or been told that makes you question whether vitamin D ‘deserves’ so much attention? Or whether you should be taking it and how much? Share with us by emailing jen @grassrootshealth.org what you have heard that makes you question vitamin D so that we can consider addressing it in our newsletters.

Know if you are getting enough vitamin D and other important nutrients

Vitamin D, along with magnesium, zinc, and omega-3s, are just a few nutrients vital to maintaining our health. To know if you are getting enough of these nutrients, make sure you test today!

We’re in a time of great crisis that could be greatly affected by making sure you and everyone you know has a serum level of at least 40 ng/ml. Help us help you.

Do you know what your vitamin D level is? Be sure to test today to find out, and take steps to keep it within a target of 40-60 ng/ml or 100-150 nmol/L! Give your immune system the nutrients it needs to support a healthy you and protect yourself from unnecessary diseases.

GrassrootsHealth Nutrient Research Institute is preparing to do a Community RCT with the use of our myData-myAnswers nutrient health system that over 15,000 people are already using for their health. We will demonstrate how one can use the Nutrient Research Model established by Dr. Robert Heaney to establish the effect of vitamin D serum levels of at least 40 ng/ml (100 nmol/L) on risk reduction with different ethnicities in the population. 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!

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.

NEWS ALERT

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!