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Published 08:51 11 Jun 2015 BST
Updated 08:52 11 Jun 2015 BST
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She's not giving up that easily though. In recent days the normally private star has upped her social media game, sharing a number of posts in favour of the diet - along with a series of swimsuit snaps showcasing the apparent benefits of her food plan.
Her latest shoutout came via Facebook, where she posted a video from her "trainer and life coach" Marco Borges, who also happens to head up 22 Days Nutrition.
Forget Daddy or Chips. Beyoncé or steak?
22 Days Nutrition"Love more. Judge Less." - Marco Borges#22DaysNutrition
Posted by Beyoncé on Wednesday, 10 June 2015
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