Actress/singer Jennifer Lopez has teamed up with doctors and scientists to launch a fitness programme geared towards women.

Body Lab is a line of supplements and protein shakes accompanied with a website and mobile phone application to help women with their daily fitness routines.

She tells U.S. breakfast show Good Morning America, "You can enhance your workouts, enhance everything that you're doing. You have to work hard, there's no magic pill.

She adds, "I'm very much about women, women empowerment, being the best you. Different things about our metabolism, that are totally different from men..."