Meet celebrity nutritionist Dt. Ambica believes in the healing power of food and’ll turn even the Holy Grail of diets on its head. In a world overflowing with revolutionary diet equations that promise better health, Ambica's food-focused ideas appeal because they’re balanced and commonsensical. “Every diet has a shelf life,” she says, “but eating sensibly is eternal and never goes out of style because it accommodates the season, region, and reason to celebrate food in all its glory.