THE PURSER WELLNESS ENCYCLOPEDIA

Let’s explore “Vitamin B12”

A RELATED COURSEMethylation & B vitamins

4 chapters, at your pace

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532 resources for your curiosity96 matching listings grouped; alternative sources stay available.

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YouTubeAug 6, 2026

OVER-METHYLATION - Are Your B Vitamins Hurting You?

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Can the B vitamins you are taking to support energy and methylation eventually make you feel worse? In this video, Jackson Larkin explains what practitioners often call “overmethylation,” a possible adverse response to supplemental methyl donors such as: • 5-MTHF or methylfolate • Methylcobalamin • Trimethylglycine, also called TMG • Multiple overlapping methylation formulas Possible warning signs can include irritability, anxiety, restlessness, insomnia, brain fog, fatigue, and feeling “wired but tired.” These symptoms do not prove that you are overmethylated. They can have many possible causes. The timing of symptoms, your total supplement exposure, nutrient status, genetics, medications, and health history all need to be considered. In this video, we discuss: • Why methylation is essential • How methyl-donor supplements support the body • Why the right vitamin can become the wrong dose • Ingredients to look for on your supplement labels • Why some people may need lower doses or non-methylated forms • How genetics and intracellular nutrient testing can guide a more personalized plan At Purser Wellness, we believe in a Start Low, Go Slow approach. The goal is not to eliminate methylation. The goal is to provide the right form and amount of support for each individual. Learn more or schedule with Purser Wellness: https://danpursermd.com Educational content only. Do not discontinue prescribed or medically necessary supplements without consulting your qualified healthcare professional. #Overmethylation #MTHFR #Methylation #B12 #Methylfolate #VitaminB12 #TMG #BrainFog #FunctionalMedicine #PurserWellness Follow Dr. Purser! 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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YouTubeJan 6, 2026

Homocysteine is the Secret Assasin

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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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YouTubeOct 9, 2025

Which Vitamins Prevent Iron Deficiency?

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If you are low or think you're low in Iron, you HAVE to try Vitamin B12 and Vitamin C to boost your levels. Seeking Health has a great Methyl Free B vitamin complex, and our VARS Vitamin C from PhysicianDesigned.com is your best option for FUNCTIONAL vitamin C. Boost your levels and always remember you can get a CMA Intracellular Test if you want to see your other levels. Reach to my office with any questions. 801-796-7667 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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InstagramMay 23, 2025

Been put on psych meds but still not feeling better? 😟 The real issue might not be a need for Prozac or…

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Been put on psych meds but still not feeling better? 😟 The real issue might not be a need for Prozac or amitriptyline—it could be a vitamin deficiency like low B12, folate, CoQ10, or lithium. 🧬 Fix the deficiencies first with a CMA with Red

YouTubeJan 6, 2026

How To Know If You Have High Homocysteine?

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High homocysteine often shows up first as widespread inflammation—pain all over, poor circulation, or even early warning signs of cardiovascular problems like stroke and heart attack. The best way to know for sure is through testing: a blood test can measure homocysteine directly, while a CMA with Redox uncovers the vitamin deficiencies driving it. For genetic causes, the DRP Genetics panel screens 15–16 of the 17 known SNPs that can cause permanently high homocysteine. If your levels are fixed by genetics, reduced glutathione and targeted B vitamins (like MTHFR Daily) are key to balancing the

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YouTubeMay 30, 2026

Autism Answered - Root Cause Solved with #1 Reviewed MD in the USA

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…ttle six-year-old kids. Um and so you counsel them on their vitamins. Yep. On their vitamins. Nutrition. So we'll see how it goes. This is Jackson talking. Yeah. Yeah. He's a licensed nutrition counselor. So accredited or whatever. What do …

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YouTubeMay 23, 2026

Understanding Your CMA with Redox Results: What Those Two Pages Actually Mean

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…ne that's the breakdown of all of 50 different nutrients uh vitamins, minerals, and and amino acids that you may be deficient in. And so this is the key page of our of our testing results that we focus a lot on in our appointments. These ex…

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YouTubeApr 29, 2026

How to Properly Treat Kids: Root Cause Medicine for Autism, ADHD, and Developmental Challenges

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…l asked me about. Will it help POTS? Not necessarily. But a vitamin panel we do always helps the pots. say or vitamin B we never not clear up pots cases if it is a some kind of injury I won't say the first word case um the spike protein is …

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YouTubeMar 30, 2026

SPRING RENWAL - How Are You Protecting Your Health | Live with Dan Purser MD

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…k about tonight, Chantel? I'm gonna let you choose. I think vitamins. Everybody wants to know about vitamins. They do? Yeah. I think that'd be that's okay. Good. We'll we'll do that. Kind of boring, but okay. We can make it exciting. Um lik…

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