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
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This report overview covers RAD50, the MRE11–RAD50–NBS1 (MRN) complex, DNA double-strand breaks, genomic stability, and the DNA-repair and oxidative-stress pathways discussed in the source.
This report overview covers the reduced folate carrier (RFC1), rs3788200, rs1051266, intracellular folate, homocysteine, and the report’s discussion of folinic acid and methylfolate.
This report overview covers the source’s discussion of rs1801406, BRCA2, DNA repair, cancer-risk interpretation, genetic counseling, and inflammatory signaling; the overview does not establish a variant’s classification or personal cancer risk.
What if your genes have been providing clues about your health your entire life?
Most people spend years treating symptoms without ever asking why those symptoms exist in the first place.
Genetic testing can provide valuable insight into
🚨 Why do you keep craving sugar and crashing even when you’re trying to eat healthy?
If you have an MTHFR variant, it’s likely NOT just willpower — it’s a methylation & energy production issue at the cellular level.
In our latest video, we
MTHFR & The Never-Ending Sugar Crash Cycle: Why You’re Always Tired & Craving Sweets
If you have an MTHFR variant (C677T or A1298C), you may constantly battle fatigue, sugar cravings, and energy crashes — even when you’re “doing everything right.”
In this video, we break down exactly why this happens:
How MTHFR/methylation issues impair ATP (energy) production at the cellular level
Why your body desperately reaches for quick glucose
The vicious cycle of blood sugar spikes → insulin crashes → more cravings & fat storage
The downstream effects on antioxidants, DNA repair, and overall energy
How to finally break the cycle:
Targeted supplementation that fills methylation “holes” (what we learned from 15–20k intracellular tests)
Why our MTHFR Daily multivitamin was specifically formulated for this
The power of CMA intracellular testing
Intermittent fasting (12–16 hrs)
Fasted cardio (even just a brisk walk)
High-protein, real-food diet with minimal processed sugars
If you’re tired of the sugar rollercoaster and want stable energy, this is for you.
Links:
Read the full Substack article → https://danpursermd.substack.com/p/the-mthfrsugar-craving-cycle
Get your CMA intracellular testing & genetics done → Call our office or visit danpursermd.com
Shop MTHFR Daily → https://physiciandesigned.com/products/mthfr-daily
Have an MTHFR variant? Drop your genotype (heterozygous/homozygous) in the comments — I’m always curious!
#MTHFR #SugarCravings #Methylation #ChronicFatigue #Energy #PurserWellness #FunctionalMedicine #IntermittentFasting
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
Could an overlooked lab marker be providing valuable insight into your health?
Understanding your homocysteine level may help you and your healthcare provider identify opportunities to support cardiovascular health, healthy methylation, an
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