Protein shakes are just for men who want to bulk up. Right? Wrong. Us women need protein every bit as much as men. And women who work out need it most of all. In fact, a slim, healthy figure is built on protein. So stop worrying about packing on the muscle - taking a little extra protein on board won’t turn you into the incredible hulk. No. A delicious Matrix shake once a day as part of a balanced diet, combined with a healthy workout regime will help make you sleek, sexy and bursting with vitality.