25/04/2026
Ever wondered why your friend can have an espresso at 9pm and sleep like a baby, while you have one cup at breakfast and feel wired all day?
It's in your genes.
Your body breaks down caffeine using an enzyme called CYP1A2, and depending on your genetics, you're either a fast, intermediate, or slow caffeine metaboliser.
π Fast metabolisers: Process caffeine quickly, get good energy, feel great
π Intermediate metabolisers: Need to time their coffee intake (usually before 11am)
π Slow metabolisers: Feel jittery, anxious, can't sleep even from morning coffee
If you're curious about how your body processes caffeine (and a whole lot more), we can actually test for this.
I use genetic testing in clinic to help clients optimise their diet, lifestyle, exercise, and even toxin exposure based on their unique genetic makeup.
It's a simple cheek swab that can be a real game-changer.
Watch the full explanation π