Let’s explore “homozygous”

Dr. Purser’s subscriber report on IL-5, cytokine genetics, and the topics discussed in his homozygous IL5 variant report.

A subscriber post from Purser Wellness on Substack, covering genetics and methylation.

By Dan Purser MD Pathway-level clinical interpretation focused on inflammatory interaction, likely signs, and likely complications

A subscriber post from Purser Wellness on Substack, covering genetics and methylation, inflammation and antioxidants.

Your genetic results might list “wild type,” “heterozygous,” or “homozygous,” but what does that mean? Wild type means both copies of your gene are normal, heterozygous means one is normal and one has a change, and homozygous means both cop

If you’re homozygous for the MTRR gene, especially double homozygous, there’s a good chance your body can’t make enough SAMe—a compound critical for mood, energy, and methylation. 🧬 For many with this mutation, taking SAMe can feel like fli

Coming soon: the DRP Genetic Cytokine Panel. This panel looks at 90 different cytokine gene SNPs. If even one of those SNPs is homozygous, it can drive major inflammatory issues that never fully settle with standard care. If you have unex

Coming soon: the DRP Genetic Cytokine Panel. This panel looks at 90 different cytokine gene SNPs. If even one of those SNPs is homozygous, it can drive major inflammatory issues that never fully settle with standard care. If you have unex

PURSER WELLNESSMTHFR & The Never-Ending Sugar Crash Cycle: Why You’re Always Tired & Craving SweetsA conversation with Dr. Purser

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

PURSER WELLNESSWhat Happens If You Have A Gene SNP?A conversation with Dr. Purser

Genetic SNPs are tiny changes in your DNA that can drastically affect how well your enzymes and proteins work. For example, being homozygous for MTHFR C677T leaves that enzyme functioning at only about 30% efficiency, which can drain your energy and impair folate processing. Similarly, errors in SOD genes reduce your body’s ability to neutralize free radicals. While we can’t change your genes, we can work around them by identifying these weaknesses and filling the gaps with targeted nutrition and supplementation—helping your body function closer to its full potential.

PURSER WELLNESSGene Types ExplainedA conversation with Dr. Purser

Your genetic results might list “wild type,” “heterozygous,” or “homozygous,” but what does that mean? Wild type means both copies of your gene are normal, heterozygous means one is normal and one has a change, and homozygous means both copies have the same change. With genes like MTHFR, these variations can affect how efficiently your body processes nutrients like folate—sometimes cutting function by 40–70%—which is why targeted nutrition and testing matter.

Genetic SNPs are tiny changes in your DNA that can drastically affect how well your enzymes and proteins work. For example, being homozygous for MTHFR C677T leaves that enzyme functioning at only about 30% efficiency, which can drain your e