Gwen Stefani's Bikini Body Diet And Workout Secrets

Samantha Chang

Gwen Stefani has a sizzling bikini body at age 48, thanks to a healthy, portion-controlled diet and rigorous exercise. Judging by her flat abs, it's hard to believe the Grammy-winning pop star has three children.

Stefani has been dating country music superstar Blake Shelton since 2015 and formalized her divorce from British singer Gavin Rossdale in 2016. Despite the personal turmoil, Gwen has never looked better due to a healthy, active lifestyle.

Stefani previously revealed that her anti-aging fitness secrets are a mostly vegan diet and intense exercise. While she's no longer 100 percent vegan, Gwen still eats lots of vegetables and minimizes processed-food consumption.

"Everything's fried," Gwen told Giada on Facebook Live. "It shocks me because growing up in California...we learn how to be healthy. And in Oklahoma, they learn just how to have fun and eat like not worry about it. It's fun, though."

As for exercise, Stefani maintains her sleek bikini body by sweating at the gym by lifting weights and boxing. She said she tried yoga and Pilates, but found those workouts to be too low-key for her intense personality.

"I'm more like a man: I like going to the gym and lifting weights or doing a little boxing," Stefani told InStyle.

In 2012, Stefani's bikini body was thinner and had less muscle tone, but just as beautiful.

"Gwen appears to have done Botox," Miami plastic surgeon Dr. Michael Salzhauer told Radar Online. "She's also had her already luscious lips plumped up to perfection. Aside from that, she's just most likely had a series of chemical peels."

Beverly Hills plastic surgeon Dr. Sheila Nazarian agreed, saying "Gwen looks like she has had a lot of fillers in her face, Botox, and chemical peels." Neither physician has treated Stefani.