If you have ever gone down the methylation rabbit hole, MTHFR, homocysteine, COMT, detoxification, you already understand the appeal of a genetic methylation pathway test: it organizes your genes around the biochemistry you are actually trying to influence. The catch is that most of these tools rest on a few hundred hand-picked variants. The idea is sound, the foundation is thin. SelfDecode runs the same pathways on a clinical-grade whole genome instead.
The pathways you actually get
SelfDecode’s pathway reports include Methylation, Detox, Histamine, Dopamine & Norepinephrine, Serotonin & Melatonin, GABA & Glutamate, Mitochondrial, Blood Sugar, Longevity, and Inflammation. They sit inside the same unified platform as your 1,500+ reports, your labs, and your recommendations, so a methylation finding does not live in isolation, it connects to the rest of your biology and to concrete next steps.
Pathway reports are only as deep as the data beneath them
Here is the distinction to hold onto. A pathway report is a way of organizing genetic information around a biochemical cycle. That organization is only as good as the genetics underneath it. Most practitioner pathway tools read a fixed set of a few dozen to a few hundred SNPs, which means the pathway picture is built from a handful of points. SelfDecode builds its pathway analyses on a clinical-grade whole genome, with far more underlying data and one editorial and validation standard across every report. Same idea, much deeper foundation.
Comparison chart

| Company | Pathway reports | Underlying data | Built into a full platform? |
| SelfDecode | 10+ (methylation, detox, histamine, etc.) | Clinical-grade whole genome | Yes |
| IntellxxDNA | Multiple pathways | ~300 to 400 SNPs | Practitioner tool |
| StrateGene | 5 methylation-cycle pathways | 98 genes, 206 SNPs | Standalone report |
| 3X4 Genetics | Pathway-organized | ~134 genes | Practitioner tool |
| Lifecode Gx | Methylation + others (40+ genes) | SNP-based | Practitioner tool |
How the others stack up
IntellxxDNA. A functional-medicine practitioner tool that reports on roughly 300 to 400 SNPs across pathways like methylation, detox, and cognition, with gene-by-gene summaries. Useful in a clinician’s hands, but it is a few-hundred-SNP panel, not whole genome, and it is delivered through practitioners rather than as a self-serve platform.
StrateGene. Maps 206 SNPs across 98 genes into five methylation-cycle pathways (folate, methionine, transsulfuration, biopterin, histamine) with illustrated cycle charts. A focused, well-known methylation tool, but narrow in scope and built on a small variant set.
3X4 Genetics. Organizes about 134 genes by biological pathway with color-coded impact and a few diet, lifestyle, and supplement tips per top pathway. Approachable, but again a limited-gene panel rather than whole genome analysis.
Lifecode Gx. Offers practitioner pathway reports; its methylation report covers 40+ genes across five sub-cycles. Like the others here it is SNP-based and practitioner-oriented, which is narrower than SelfDecode’s whole-genome pathway analysis.
The common thread: these are pathway reports on small SNP panels. SelfDecode’s are the most comprehensive, built on a clinical-grade whole genome and integrated with the rest of your data.
FAQ
What is a genetic methylation pathway test?
A report that organizes your genetic variants around the methylation cycle (folate, B12, homocysteine, and related genes) to show where your biology may need support. SelfDecode’s methylation report is built on whole genome data and sits alongside detox, histamine, and other pathway reports.
Which methylation test is the most comprehensive?
SelfDecode offers the most comprehensive pathway reports in the industry, spanning methylation, detox, histamine, dopamine, serotonin, GABA, mitochondrial, blood sugar, longevity, and inflammation, built on a clinical-grade whole genome rather than a few hundred SNPs.
How is SelfDecode different from StrateGene or IntellxxDNA?
Those are practitioner tools built on a few hundred SNPs and focused mainly on methylation or a fixed pathway set. SelfDecode covers more pathways, on whole genome data, inside a platform that connects them to your labs, recommendations, and 1,500+ other reports.
Do I need a practitioner to use SelfDecode’s pathway reports?
No. They are built into the self-serve platform, though they are also physician-readable and used by clinicians.
See your pathways
Explore the methylation and detox reports on your own genome, or see how they connect to 35+ health categories.
Part of the Why Choose SelfDecode comparison. See also: The 6 levels of DNA sequencing.