Eating too much protein. To test that hypothesis, I started a 10-day-protein-reduction experiment in April by eating a maximum of 60 grams of protein a day (down from around 80-120). This really bothered me, as I love eggs, cheese and meat.
Having eaten strictly low carb AND low protein for ten days, I pricked my finger and put my blood on the keto strip.
Beeeeep! The screen was blinking – 0.0 mmol/L. Nothing. No ketosis whatsoever.
My colleagues and I had been wrong – too much protein wasn’t the culprit.