Stars in Hollywood have all kinds of secrets for keeping up appearances, whether it’s drastic a la Miranda Kerr’s leech beauty treatments or simple like Kourtney Kardashian’s apple cider vinegar smoothies. Now, Olivia Munn just spilled the beans on what her healthy snack is (and, spoiler alert, it’s not beans).

Munn believes she’s found just the right food to help her stay fit, and it’s none of the standbys you’d expect. Instead, the Office Christmas Party actress snacks on — get this — beef jerky.

In an interview with US Weekly, the 36-year-old said that she carries it with her constantly. “It’s a really easy go-to snack that has protein and it’s really low in sugar and carbs because my other option is protein bars,” she revealed. “I was eating those for a while and that just puts on weight. They’re loaded with sugar and carbs.”

It’s not the only food weapon in her healthy arsenal, either. She revealed over on Instagram last year with a lengthy post that showed Munn’s physical transformation over the course of a year. “Ask anyone who knows me and they’ll tell you I love research,” she wrote. “Convinced that there’s got to be natural, healthy ways (i.e. not only the rich and connected can get it) to keep your skin from aging, I do lots of research.”

And that research led the X-Men: Apocalypse actress to her go-to anti-wrinkle food: Japanese sweet potatoes. “Japanese potatoes that are high in hyaluronic acid help keep wrinkles away,” she revealed. “Look up this video ‘Connie Chung Yuzihara’ to learn all about it. There are hyaluronic pills and vitamins but I think the best way to get it in your system is by eating them in foods that naturally have them.”

And there you have it, folks! Beef jerky and Japanese sweet potatoes for the win. Who knew?!

What foods do you eat to keep your skin looking its best? Share your tips over @BritandCo.

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(h/t Refinery 29; Photo via Dimitrios Kambouris/Getty)