BMR and daily energy expenditure don’t dictate weight change, they respond to weight change. The Biggest Loser contestants were in starvation mode during and after the competition. Their lower BMRs and daily expenditures were a desperate, evolved strategy to keep expenditures in line with their severely reduced intake. In the years following the show, contestants who ate the most and regained the most weight gave their bodies the strongest signals that the danger of starvation had passed. Their BMR and daily expenditures rebounded along with their body weight.
