Lisa Lillien, leader of the Hungry Girl brand, says she offers real food for real women based on two things: "How does it taste? And how much of it can I have?" Her daily e-mail newsletter has more than 1 million subscribers, and her past two cookbooks debuted at No. 1 on The New York Times best-seller list for advice and how-to books, making her one of the most influential women in the diet world despite criticism from nutritionists.
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