THE PURSER WELLNESS ENCYCLOPEDIA

Let’s explore “Vitamin D”

A RELATED COURSEGetting to know your micronutrients

5 chapters, at your pace

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New to this subject? Start with this free introduction.Is a Vitamin Deficiency the Root Cause of Your Problems?

535 resources for your curiosity89 matching listings grouped; alternative sources stay available.

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FacebookApr 26, 2022

HMMMM, push the upper limit of 25(OH)D levels. Usually 104 is the upper limit but I read an extensive article review…

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HMMMM, push the upper limit of 25(OH)D levels. Usually 104 is the upper limit but I read an extensive article review two weeks ago that said the level was 250 in the 1950s and 1960s. TPTB have been suppressing levels and data? I just can't …

FacebookOct 3, 2026

What if one of the most overlooked minerals in wellness is one your body may actually benefit from?

In the description

What if one of the most overlooked minerals in wellness is one your body may actually benefit from? Boron rarely gets the attention of magnesium, calcium, or vitamin D. But maybe it should. This trace mineral has been studied for its rol

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Gene referenceSep 23, 2026

VDR

In the description

VDR encodes the vitamin D receptor, which helps regulate gene activity in response to active vitamin D. A receptor variant does not by itself mean receptors are absent or that the blood vitamin D level is low.

FacebookNov 3, 2020

Once again stuff like this is why a Spectracell MicoNutrient (intracellular) Panel is so necessary before trying to…

In the description

Once again stuff like this is why a Spectracell MicoNutrient (intracellular) Panel is so necessary before trying to concieve. Get yours now at danpursermd website under testing. https://medicalxpress.com/news/2020-11-vitamin-d-pregnancy-l

Health BlogSep 19, 2018

Natural Osteoporosis Therapy

In the description

Osteoporosis is a problem many individuals face. However, osteopenia (a precursor to osteoporosis) is an even bigger challenge few recognize. To compound the issue, many doctors prescribe bisphosphonates when undiagnosed (or improperly diagnosed) vitamin deficiencies are causing osteopenia and osteoporosis. Unfortunately, bisphosphonates are reported to have a 75% rate of serious side effects. Vitamin deficiencies are no joking matter in relation to osteoporosis. Most know a lack of Vitamin D can cause softer bones and lower levels of calcium. Yet, many other vitamin deficiencies, including ma

YouTubeJan 6, 2026

Homocysteine is the Secret Assasin

In the description

Homocysteine is nasty — but here’s the truth no one tells you. It doesn’t kill you directly — it triggers white blood cells to release IL-8 and MCP-1, causing inflammation, kidney failure, heart attacks, and strokes. Most doctors don’t even check it anymore, thinking there’s no fix. But there is. Whether from 17 genetic SNPs or 12 vitamin deficiencies (like B6 or B12), you can address it by supporting your body’s ability to convert homocysteine into glutathione.

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YouTubeSep 11, 2025

Tired all the time? Are you Overmethylating?

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😴 Feel like you took 3 Dramamine but all you had was a vitamin? You might be overmethylating—especially if you're taking too much MTHFR support like methylated B vitamins. If you’re drowsy, foggy, or exhausted, it’s time to back off, not push through. Try dropping to 1 capsule of MTHFR Daily and adjust slowly. Your body will thank you. Info: http://www.DanPurserMD.com Supplements: https://www.PhysicianDesigned.com Books: https://www.amazon.com/-/e/B00BIKSGVQ Facebook: https://www.facebook.com/danpursermd Facebook: https://www.facebook.com/PhysicianDesigned Twitter: https://twitter.com/realdanpursermd YouTube: https://www.youtube.com/danpursermd Instagram: https://www.instagram.com/danpurser.md Pinterest: https://www.pinterest.com/danpursermd

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YouTubeSep 16, 2026

Wild genetic facts I learned this week that could actually be deadly

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…as that all about? [laughter] You like that little intro? I don't know. Yeah. Well, you're live. We're live now. I know people think I'm all the um this functional medicine. I don't know what a functional medicine doctor is. Um I'm definite…

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