Stars' Summer Style

While we can't all have the youthful metabolism of 19-year-old Vanessa Hudgens, a healthy diet can produce similar results. "Seventy percent of the bikini-friendly results will be found through optimum nutrition," says celebrity trainer Grant Roberts. "The other 30 percent includes a well-designed workout program that includes weights, cardio, stretching and lifestyle management such as reducing stress and getting adequate rest."