About the author
Frixos Dimitriadis is a nutrition and performance coach with 12 years of experience and more than 1,000 clients coached. He founded DietSync, the Cyprus fitness app and coaching programme that builds each client a nutrition plan around their own goals, schedule and food preferences.
At Fuel Sync he writes and checks our guides to protein, creatine and amino acids, so the advice matches what he gives his own clients.
How we check our guides
Every guide is written or reviewed by Frixos, checked against the label of the Fuel Sync product it mentions, and backed by published research where it makes a health or performance claim. We update a guide when a label, a product or the evidence changes, and show the date it was last updated.