Manchester City manager Pep Guardiola has exiled some of his players from first-team training until they meet certain weight targets.
Defender Gael Clichy says the Spaniard has told his squad to avoid pizza, some juice and certain “heavy food”.
“They are not overweight, but I want my players fit,” said the new City boss.
“The weight is so important. When you are not fit, danger is coming. You’re not fast enough or quick enough in the head. That’s why you need to be fit.”
French full-back Clichy says he is fully behind Guardiola’s approach.
“For my part, it’s the first time any manager has really done it,” added the 31-year-old. “And we have a few players who are not training with the team yet.
“If your weight is too high, you’re not training with the team. You have to know that if your weight is 60 kilos and you are on 70 kilos, then you cannot play football.
“Some people think that’s normal but, in truth, it’s not always like this. I know because I’ve been playing football for a long time. It’s really refreshing and very exciting.”
City face Borussia Dortmund in the International Champions Cup in Shenzhen, China, on Thursday.