Articles
Your genes and your medicines, inherited cancer risk, nutrition, and how our lab works: each piece answers one question, with its sources.
Pharmacogenomics
How your genes can change the way your body handles medicines.
More on pharmacogenomics
Pharmacogenomics in 2026: what the evidence says
Nearly everyone carries a gene variant that may change how their body processes a medicine. Here is what the evidence says in 2026.
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Do mental health DNA tests work? What they can and can’t tell you about psychiatric medicines
What a mental health DNA test reads, what it can’t tell you, and what the depression trials found.
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How does pharmacogenomics work? A plain-English guide
Some genes change how quickly you process certain medicines, and published guidance says when that matters.
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Inherited cancer risk
What inherited variants can and can’t tell you about cancer risk.
More on inherited cancer risk
Nutrigenomics
Genetic traits studied in diet, fitness and everyday wellbeing.
Compare our DNA nutrition tests
Fitness genes explained: what ACTN3 and other exercise genes can and can’t tell you
ACTN3 and ACE are linked with speed and endurance in groups of athletes, but they can’t pick your sport.
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Is there a DNA test for weight loss? What trials found, and what a DNA diet test can describe
Is there a DNA test for weight loss? What the trials found.
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Compare, costs and questions
Pages that answer one question before you choose: what testing costs, how tests compare, and what each kind of test can tell you.
BRCA test: how to get BRCA1 and BRCA2 testing, and what it can’t tell you
How to get BRCA1 and BRCA2 testing, who guidelines say should, and why a selected-variant result can’t rule out a harmful variant.
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How much does genetic testing cost? What you pay at GeneMatrix
Every GeneMatrix test has one published self-pay price, paid when you order.
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MTHFR test: what it can and can’t tell you about folate
What an MTHFR result says about folate, why guidelines advise against routine testing, and what it can’t tell you.
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DNA health test: what your genes can and can’t tell you
What a DNA health test can and can’t tell you, and which kind of test answers which question.
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GeneMatrix vs 23andMe: which DNA test fits what you want to know?
Both use genotyping in CLIA-certified labs; the difference is what each test is for.
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GeneSight alternative: how GenePGx and GeneSight compare
An honest, dated comparison of GeneSight and GenePGx, including when GeneSight may suit you better.
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Genetic testing for ADHD medication: what your genes can and can’t show
One ADHD medicine has a CPIC gene-based guideline and the stimulants have none: what a genetic test can and can’t show.
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Mental health DNA test: how you’re likely to process antidepressants and other psychiatric medicines
A pharmacogenomic report on how you’re likely to process mental-health medicines, to bring to your prescriber.
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Statin genetic test: what SLCO1B1 can tell you, and what it can’t
How one gene, SLCO1B1, affects the way your body handles some statins, and what a result can’t tell you.
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Breast cancer genetic testing: which genes, who should test, and the limits
The genes beyond BRCA1 and BRCA2, who guidelines say should test, and what a test of selected variants can’t find.
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For healthcare providers: reading a GeneMatrix report
For clinicians: what our genetic reports cover, their limits, and how to reach the laboratory.
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Hereditary cancer testing: who should test, how, and what it can miss
Who should consider genetic testing for cancer, how to get it, and what a result can’t rule out.
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Prostate cancer genetic testing: the inherited genes, who should test, and what it can’t find
The inherited genes behind some prostate cancer, who guidelines say should test, and what a test of selected variants can’t find.
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