A 500-Calorie Daily Deficit Doesn't Mean 500 Divided by 7,700 kg a Day Forever — Your BMR Keeps Recalculating
The Mifflin-St Jeor equation (1990) plus the Wishnofsky 7,700 kcal/kg conversion form the standard weight-projection model — but BMR shrinks as weight drops, which is why simple linear extrapolations overshoot.