Christina Aguilera has been following a special diet which is keeping her in shape. The singer recently flaunted a trim look at an awards function.
She follows a Fresh Diet premium meal plan, which features meals amounting to a maximum of 1,600 calories a day, reports US Weekly magazine.
"She did it all on her own. She goes online and picks out her food," the magazine quoted a source as saying, reports dailystar.co.uk.
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