DaMoshe, not that I think that girls should wear tefillin, but what if fish is really BETTER for your health than that steak, no matter how much you love steak? People who want to make changes (and I do not hold by any of them), are people who l’kaf zchus genuinely seem to believe that the fish is better for ALL of us than the steak. They are just a bit over-eager in their approach and fail to consider that the steak was delicious all on its own, and beneficial in other ways, which they fail to perceive.
Boy, now I am so hungry. Have a good Shabbos.