Articles & Guides

Evidence-based writing on genetics, personalized supplementation, and why your DNA determines your health needs.

Why Your DNA Should Determine Your Supplements

Generic supplement advice ignores the genetic variants that determine how your body actually processes nutrients. Here is the science behind personalized supplementation.

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Why Generic Supplements Don't Work for Everyone

The science behind why one-size-fits-all supplement recommendations fail millions of people — and what to do instead.

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DNA Testing for Health Practitioners

How functional medicine and integrative health practitioners can use genetic data to deliver better, more personalized patient outcomes.

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What to Do With Your 23andMe Raw Data

Your 23andMe raw data contains hundreds of genetic variants 23andMe never shows you. Here is how to download it and what you can actually learn from it.

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MTHFR C677T: What This Gene Variant Means for Your Supplements

MTHFR C677T is the most common functional gene variant affecting B-vitamin metabolism. Learn what it means, how it affects your folate processing, and what to do about it.

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MTHFR A1298C: The Other MTHFR Variant Most People Miss

MTHFR A1298C affects BH4 production and neurotransmitter balance — but most reports only test C677T. Here is what A1298C means and why compound heterozygosity matters.

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COMT Gene & Supplements: How Val158Met Affects Your Neurotransmitter Balance

The COMT Val158Met variant determines how quickly you break down dopamine and estrogen. Learn how it affects your supplement strategy, especially methyl donors.

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COMT Gene, Fatigue, and Anxiety: Why You Feel Exhausted and Disconnected When Blood Work Is Normal

Slow COMT creates a distinctive fatigue-anxiety pattern — including post-exertional crashes and derealization — that standard blood panels are not designed to detect. Here is the mechanism.

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VDR Gene & Vitamin D: Why Your Genetics Determine Your Optimal Dose

VDR variants can reduce your ability to respond to vitamin D by 50% or more. Standard dosing guidelines ignore your genetics — here is what actually determines your optimal dose.

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23andMe & Methylation Genes: What Your Raw Data Reveals

Your 23andMe data includes MTHFR, MTR, MTRR, COMT, and other methylation genes — but 23andMe only reports on one. Here is how to interpret all of them.

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Personalized Supplements Based on DNA: How It Works

DNA-based supplement protocols go beyond generic recommendations by analyzing how your specific genetic variants affect nutrient absorption, metabolism, and utilization.

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10X Health Alternative: What to Know Before You Buy

Looking for a 10X Health alternative? Compare what different DNA supplement services actually analyze and deliver before you spend hundreds of dollars.

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23andMe vs. AncestryDNA for Health: Which Raw Data Is More Useful?

Both services offer raw DNA data downloads, but the chip versions, SNP coverage, and health-relevant variants they test differ significantly. Here is what matters.

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BDNF Gene & Supplements: Supporting Brain Health Through Genetics

The BDNF Val66Met variant affects neuroplasticity, memory, and mood. Learn how your BDNF genotype should shape your approach to brain-supportive supplementation.

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Compound Heterozygous MTHFR: What It Means and What to Do

Carrying one C677T and one A1298C is often more significant than being heterozygous for either alone. Neither gene copy is fully functional — here is what that means for your health.

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Methylfolate Side Effects: Why You Feel Worse and How to Fix It

Anxiety, irritability, and insomnia after starting methylfolate are common — and fixable. Learn why startup reactions happen and how to take methylfolate without feeling worse.

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APOE4 Gene and Alzheimer's Risk: What to Do If You Carry It

Finding out you carry APOE4 is scary. Here is what the science actually shows about risk, and the evidence-based interventions — DHA, lifestyle, B vitamins — that meaningfully reduce it.

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MTHFR and Pregnancy: Prenatal Vitamins, Miscarriage Risk, and the Research

Does MTHFR increase miscarriage risk? Should you take methylfolate instead of folic acid during pregnancy? A balanced, research-grounded answer to the most common questions.

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Overmethylation vs. Undermethylation: How to Tell Which You Are

Should you take methyl donors or avoid them? The answer depends on your methylation status. Learn how to tell the difference and what each pattern means for your supplement strategy.

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23andMe Bankruptcy 2025: What Happened to Your DNA Data

23andMe filed for bankruptcy in March 2025 and was acquired by Regeneron. Here is what happened to your genetic data, what the law says, and exactly what to do now.

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The Methylation Pathway Explained: MTHFR, MTR, MTRR, COMT, CBS, BHMT

MTHFR is just one gene in a complex relay. Learn how the full methylation cycle works, what each gene does, and why variants in multiple genes stack to affect your health.

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DNA Analysis Tools Compared: Promethease, Genetic Genie, SelfDecode & More

Downloaded your 23andMe raw data and not sure which tool to use? An honest comparison of the most popular DNA analysis tools by use case, cost, and what you actually get.

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Homocysteine and MTHFR: The Key Biomarker You Should Be Testing

Homocysteine is the most important clinical marker for MTHFR carriers — yet most people have never tested it. Learn what it is, what optimal levels look like, and how to lower it.

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Histamine Intolerance and MTHFR: The Methylation Connection

Reacting to wine, fermented foods, or leftovers? If you have MTHFR, impaired methylation may be reducing your ability to clear histamine. Here is the mechanism and what to do.

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