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Dublin: 0 °C Friday 1 December, 2023

# Kevin Hall

All time
Study follows aftermath of The Biggest Loser - shows incredible difficulty contestants have in keeping weight off
Danny Cahill, winner of the reality show in 2009, lost 239 pounds in seven months. Since then he has regained over 100 pounds.
Dieticians revise calorie calculations: it's now twice as tough to lose weight
US scientists say the previous formula – where cutting 500 calories a day meant losing 1lb a week – was too generous.