Entirely pointless. I completely disagree that the "obesity crisis" is caused by Shabbos overeating. I gained some weight over Sukkos and within a few weeks after it was over the weight disappeared because I went back to my usual pattern of eating. No matter how much you're eating on Shabbos, that's two meals out of 21 per week; It's the other 19 meals that are causing people to gain weight; Weight Watchers even builds in a "free day" of eating so long as you're saving your points the rest of the week.

How many of the above people are eating healthy during the WEEK either? And have you ever seen what food is served in most yeshivas??? Shabbos might not be exactly conducive to weight loss, but I really don't think it is a significant part of the problem, or the place to start in making our diets more healthy. People will be MUCH more receptive to variation (within REASON) during the week than to touch their holy shabbos traditions...
A typical Tamani Friday night meal consists of:
Kiddush
Pita bread (Actually lafa bread)
Chicken Soup
A typical Tamani Shabbos Lunch consists of:
Kiddush
Pita bread (Actually lafa bread)
A meat/bean stew (without potatoes.)
The Rambam was a doctor.
You're forgetting all the Kubana, Jachnun, Lahoch etc....
And many Yemenites were thin because they HAD no food. And the same is true in Eastern Europe. Few people could AFFORD to be fat...
You don't "need" to bond communally once a day for 3 days either. But removing it is removing something more fundamental than gala on the menu.
And no, there isn't bound to be overeating if you do, if you space and serve things properly.

And let's remind everyone of all the Shabbos Zemiros. Barburim, Slav, Dagim, Lechem vyayin Tov, Basar V'dagim. Wine, sweet drinks etc...
No mention of Quinoa or Alfalfa...
And no that's not halacha, but it SAYS something, that THESE are the zemrios that were "canonized" some of them from as early as the middle ages. Eating well is an integral part of Shabbos and Yom Tov and always has been in Jewish tradition. We don't need to go overboard but at the same time we shouldn't ignore or downplay the significance of "Feasts" in Judaism...
No, I frequently don't keep the mitzvah of challah.
And no, a slice of fish and salad is a frequent meal for me, that is not "starving myself" by far. You could use a nutrition class yourself, m'dear.
OK so no offense, but you really can't expect "normal eaters" let alone fressers to take your message seriously. You have no frame of reference or common denominator.....
OK, but they still get a lower net calorie count and some exercise thrown in as well.
Also exercise in general increases metabolism, and reduces appetite, so there is surely a net gain...
And I agree with lyric, in most houses I've been to (and KR has been around the block), almost without exception, people serve some sort of veggies. Maybe carrots, beet salad, a regular lettuce salad, cole slaw, Israeli salad etc... It's not ALL meat and potatoes....