Alessandra Ambrosio, one of Victoria's Secret's most renowned models, works hard to keep her slim figure.

The model, who has also appeared on FHM's 100 Sexiest Women list several times, focuses on her diet and exercise in order to be runway ready. In March, she told Yahoo's OMG! Insider that she enjoys doing pilates and is conscious of what she consumes.

"I try to take care of myself daily and have a lot of green juices. I'll have like salads in the summer. I like to have soups in the winter," she said.

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In 2008, Ambrosio gave birth to a daughter named Anja Louise Ambrosio Mazur and worried how the pregnancy would affect her body.

"I didn't know what my body was going through and I'm like 'What's going to happen to my body, how do you go back?' and I was reading tons of magazines and articles online to see how do you get back in shape," she said. "It just takes time."

However, it didn't take her too long to look the way she did before pregnancy and four years later, she gave birth to her second child, a boy named Jamie Mazur. Yet, becoming a mother has never slowed down her modeling career. Instead, she said she works more than she did before.

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"I am working pretty much every day," she had told OK! magazine in 2009. "I still want to have time to be with my daughter, but I'm working almost every day."

Scroll through our gallery to see photos of the model through the years.