Anne Hathaway Flashes Abs in Corset Top on Birthday

Anne Hathaway recently rang in the final year of her thirties in style! The Princess Diaries actress, who celebrated her 39th birthday November 12, shared a photo of her ab-baring “birthday look” on Thursday, which consisted of a pastel-hued, strapless lace corset top and jeans. How does the mother-of-one maintain her fit figure? Read on to see 7 ways Anne Hathaway stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

1. She Used to Be a Vegan

Anne was a longtime vegan until she started shooting Interstellar and was forced to wear a 40-pound spacesuit on a daily basis. "I just didn't feel good or healthy," she explained to Harper’s Bazaar, "not strong." One day in Iceland she caved with a fresh piece of fish—"from a stream I could see from where I was sitting," she explained, and the following day she "just felt better."

2. She Says No to Alcohol

Shutterstock

In a 2019 interview with Tatler, Anne revealed that she had quit drinking. “‘My issue is I just love it. So. Much. But the way I do it makes me unavailable for my son. My last hangover lasted for five days. I’d earned it: it was a day drinking session with friends that went into an evening birthday party with one of my drinking buddies. I will never be that person who can nurse a glass of wine throughout an entire evening,” she said.

3. Losing Weight Fast Makes Her “Really Sick”

Matt Winkelmeyer/Getty Images

After losing a whopping 25 pounds for her Academy Award winning role as Fantine in Les Miserables, Anne explained to PeopleTV's The Jess Cagle Interview that she couldn’t enjoy the trophy. "I was just not in a grounded place in my life," she said. "I never wanted to go on and on about it, but that weight loss was not a long-term good thing for my health, and it took a really long time to come back from it. In order to do the transformation to play Fantine, I'd lost a lot of weight in about two weeks. I lost an unhealthy amount of weight in a short amount of time, and I was still really sick because of it."

4. Her Approach to Exercise Is Relaxed

George Pimentel/WireImage

"I'm not a natural wellness warrior,” Anne explained to Shape. “I have friends who go to longevity conventions. They take crystal baths. For me, I try to make it to yoga three or four times a week. It's a different story when I'm working on a film, though. I work out with a trainer, and I do a lot of strength training and HIIT when I need to do that.”

5. She Stays Away From Processed Food

"With eating, my number-one thing is trying to buy food that doesn't come in packaging,” she told Shape about her diet. “Beyond that, I try not to eat red meat, and I try not to eat pork.”

6. Moderation Is Key

Axelle/Bauer-Griffin/FilmMagic

In general, Anne says she is “low-key” about wellness. “The balancing [of my approach to keeping in shape] is important to me. My go-to for a lot of my life was to feel bad about myself, and I just don't want to do that anymore,” she told Shape.