My first encounter with Lisa Lillien, or Hungry Girl as her fans know her, was via a 100-calorie snack pack my friend was eating. She said she was eating it because Hungry Girl had recommended it in one of her daily newsletters extolling diet advice. I looked at the ingredients. I looked at her. I asked her if it bothered her that most of them were preservatives or synthetically made in a laboratory. She shrugged and said “no.” Judging from Hungry Girl’s success (several books, a Food Network show, a brand spokesperson), apparently many people are willing to make this trade-off: size 4 jeans today, potential health complications tomorrow.