VIDEO : Gwen Stefani's Diet

Gwen Stefani is in great shape at 48-years-old. Stefani eats a mostly vegan diet and consumes a lot of organic fruits and veggies, and drinks a lot of water. There's no denying Gwen Stefani boasts a killer body. Stefani tells Harper's Bazaar, "There is no secret: You just have to eat healthily, work out, and torture yourself!" It seems the mother of three also adheres to a rather low-carb diet. Business Insider reports that in an interview with Shape magazine, Mike Heatlie, Stefani's former personal trainer, suggested consuming a l ow-carb diet.