'Belfie' queen Jen Selter reveals the secret to her toned physique

Becoming the "belfie queen" took a lot of hard work and discipline.

Instagram sensation Jen Selter became famous for sharing pictures of her toned derriere on social media. She has nearly 10 million followers on Instagram where she shares tips on how to achieve her physique.

The secret to her fit body?

PHOTOS: Jen Selter's hottest pics

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"Quick and easy access to healthy, fulfilling snacks is the key to looking good and feeling good," Selter told Women's Health. "Especially if you’re a fitness fanatic, a well-balanced diet with lots of fruits, vegetables, and protein for energy is key when it comes to muscle recovery."

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She added, "I believe in eating whole, nutrient-dense foods, and I always have a high-protein meal after a workout, and snack on carrots, raw almonds, or a bowl of fresh fruit."