Sara Sampaio admits it's hard to stay in shape for Victoria's Secret

She might be one of the world's most beautiful models, but even Sara Sampaio admits it's difficult to stay in shape in the lead-up to the Victoria's Secret show.

The brunette beauty, who walked the runway for the lingerie giant last year, told Net-A-Porter's The Edit she hadn't realised how much work it would take to get catwalk-ready for the show.

RELATED: Kendall Jenner hasn't exercised since the Victoria's Secret show
RELATED: How to get a Victoria’s Secret Angel body

“When I started modelling, I didn't know anything about fashion, but I'd watched the Victoria's Secret Show,” Sampaio said. "Now it's the highlight of my year, but I never realised it would be so much work and how tough it is to stay in your best shape. It's not as glam as it looks!"

If the Victoria’s Secret workout Instagram account we uncovered is anything to go by, the Angels aren’t holding back when it comes to exercise.

Josephine Skriver and Jasmine Tookes have been documenting their fitness routines on the Instagram account @JoJa, and it’s hardcore enough to scare any workout enthusiast.

The girls do weights, pull planks and generally run rings around each other in an effort to stay in shape.

While Sampaio almost certainly works out, she does admit the girls have significant help when it comes to looking good at photoshoots.

"People need to realise that models get [professional] hair and makeup, incredible lighting, and we know how to pose,” Sampaio told The Edit. "I've been doing this job for almost 10 years so I know how my body looks good from different angles. But I don't look like that in real life."

However, is this a case of Sampaio being too hard on herself? Judging by her next comment, we certainly think so.

RELATED: 10 times the Victoria's Secret models went nude on Instagram

"I'm like every other girl; there are things I wish I could change about my body, but I try not to think about them too much."

Want more celebrity, entertainment and lifestyle news? Follow Be on Facebook,Twitter, Pinterest, Tumblr and Instagram