Britney On X-Treme Diet

Britney’s serious about her X Factor gig, so she’s taking the steps she needs to stay healthy and bring her A-game.
This means homegirl is on a strict diet and working out.
Britney’s ttempting to stay away fatty foods on the set of The X Factor, especially the donuts and Coke in the catering area.
“Britney has been on an extreme diet and exercise regime. She has been cutting out carbs and replacing meals with juice drinks,” a source tells The Sun.
“She was doing several hours of exercise a day before the launch and is trying to stick with the regime.”