Jennifer Lopez, 49, unveils sensational abs in crop top as she reveals SECRET to her age-defying physique

Jennifer Lopez showed off her gym-honed body in Miami while taking a 10 day diet challenge to cut sugar and carbs out [Splash] Jennifer Lopez revealed her age-defying physical type as she left the gym in Miami. After revealing she has embarked on a 10 day fitness challenge where she has cut out sugar and carbohydrates, the 49 year old showed the results in her eye-catching sportswear. Flashing her impossibly toned abs, the mum of one was clearly feeling body confident as she …