Why do I see more SNPs on my SelfDecode account than in my downloaded DNA file?
Your SelfDecode account shows more SNPs than your downloaded DNA file because we use genetic imputation to estimate additional variants beyond what your DNA kit directly tested. If you want analysis of every variant in your genome without imputation, whole genome scanning (WGS) is also available.
What's in Your Downloaded File vs. Your SelfDecode Account
Your downloaded DNA file contains only the SNPs directly tested by your DNA microarray chip — roughly 750,000 variants.
Your SelfDecode reports include those directly tested SNPs plus additional variants estimated through imputation, bringing the total to over 200 million data points analyzed across your reports.
What Is Genetic Imputation?
Genetic imputation uses statistical methods to estimate additional SNPs based on your existing genetic data and known population-wide genetic patterns. This lets SelfDecode generate more detailed health insights without testing every single variant directly — at 99.7% accuracy. Learn more here
Why Some SNPs May Be Missing From Your Download
In some cases, certain SNPs may return inconclusive results during testing (for example, conflicting readings from different probes) and are excluded from your downloadable file. SelfDecode can often estimate these SNPs through imputation and display them on the platform.
Want the Most Complete DNA Analysis?
If you'd like every variant in your genome analyzed directly — without relying on imputation — SelfDecode also offers whole genome scanning (WGS). WGS reads your entire genome, giving you the deepest level of genetic insight available.
Looking for help with your results?
SelfDecode has two AI options to help you explore your health data:
- AI Hyperintelligence — our built-in AI health coach, available directly in your account
- MCP integration — link your SelfDecode data to ChatGPT or Claude for AI-powered insights using your own account
Want more from your SelfDecode plan?
The Ultimate Bundle includes all of our current premium reports in one package:
- Ancestry Report
- Condition Reports
- Longevity Screener
- Medication Check (PGx) Report
- Carrier Status
- Pathway Reports (Methylation, Detox, Histamine & more)
Upgrade from your dashboard or email support@selfdecode.com with questions.