Kate Middleton reveals how she lost weight post-pregnancy

After just one month since Princess Charlotte’s birth, Catherine made her appearance at a charity polo match wearing skinny jeans.

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What is her secret to staying fit? Well, during a garden party in Delhi on April 11 celebrating the Queen’s upcoming 90th birthday, Kate, 34, was asked by Professor Bulbul Dhar-James about her trim post-baby figure.

“We said, ‘How do you lose all the weight after having two kids?’ ” Professor Bulbul Dhar-James told People. “And she said, ‘I am running after my kids!’ ”

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The magazine revealed last year that Duchess Kate’s secrets for keeping fit were a top trainer and a healthy diet during her pregnancy.