BROOKLINE, Mass. — Your mother-in-law fixes you a plate of food. Does she determine what you eat, and how much?

So went the question, part of a nutrition-themed game inspired by “Family Feud,” during a meeting of a women’s weight-loss group here the other night.

Charlotte Badler, 23, lunged forward to answer.

“What if you asked if you could wrap up the rest of it for tomorrow?” she offered, and then addressed an imaginary mother-in-law: “Because I would love to take it to lunch at work tomorrow.”

“I love it,” cheered her teammate, Adebola Yakubu-Owolewa, 29. The two leaned in for a high-five.

Ms. Badler is Jewish; Ms. Yakubu-Owolewa is Muslim. They and eight other women — five Muslims and five Jews — meet on Tuesday evenings at a Boston-area high school for lessons and activities around healthy eating and self-esteem. The group is the United States introduction of Slim Peace, a nonprofit organization that brings Israeli and Palestinian women together around the universal theme of weight-loss support.