Apr 14, - Vanessa Hudgens lost 20lbs by doing THIS twice a day. STUNNING celeb Vanessa Hudgens reveals the simple secret behind her impressive weight loss. Vanessa had to pile on 20lbs for her role in film Gimme Shelter. Apr 13, - Getty. Vanessa Hudgens has revealed how she lost 10lbs. The actress, who had gained weight for a role, switched to a diet rich in good fats. "I eat a whole avocado every day," she told Women's Health.