The One Test That Never Expires: Why Your DNA Is the Most Important Thing You'll Ever Test

I ran 70,000km across the world's toughest deserts to lose weight, and I got heavier, more inflamed and sicker every year. I assumed the problem was discipline. It took one genetic test to show me it never was.

In this solo episode I make the case that your DNA is the single most valuable test you will ever do. Not because it tells you the most, but because it is the only test whose result is still true in fifty years. Your bloods reflect the last few weeks. Your microbiome shifts with every trip and every course of antibiotics. Your hormones move across the month and the decade. Your DNA does not move at all.

I go through all eight areas a comprehensive genetic panel covers, what you actually learn from each one, and why a variant is a tendency rather than a verdict.

IN THIS EPISODE

My own results, and the cascade that explains twenty-five years of getting it wrong

Why genetics is different from every other test you will ever do

Genetics loads the gun, environment pulls the trigger: what that actually means in practice

The single-gene trap, and why the MTHFR obsession has it upside down

Digestion, energy, hormones, stress and cognition, inflammation, athletic performance, DNA repair and detoxification, one at a time

The difference between nutritional dosing and nutrigenomic dosing, and why more vitamin D was not working for me

Why genetics alone is not enough, and what has to sit alongside it

Why it is almost never discipline