Alejandro Crosa

Analysis of my DNA

I recently did something fun: I analyzed my 23andMe raw data with Claude's help.

The process was simple. I requested a data export from 23andMe, then asked Claude to generate a Python script to parse the raw file in my local computer (not sending sensitive data to an external service). From there, I built a small website to visualize the basic, non-sensitive information—just for fun.

Screenshot 2026-01-04 at 1.08.49 PM.png

Found it here

For the more sensitive analysis, I validated the parsing by comparing results against my official 23andMe reports. Then I explored variants related to medical conditions I already know I have, or that run in my family. Having an LLM help me navigate the data, explain what I was looking at, and point me toward relevant research was genuinely useful.

This is exciting to me. DNA tests cost around $100. They're limited, sure, but they can surface potential issues worth discussing with your doctor. Traditionally, getting personalized insights from this data meant expensive specialist consultations—out of reach for most people. LLMs change that equation. They make it possible to explore your own data, ask questions, and understand what you're looking at.

I'm optimistic about where this goes. Personal data analysis, guided by AI, puts useful tools in more hands.

Disclaimer: None of this is medical advice. This was useful and fun for me.