And
your mother-in-law.
Your example was her first insight into healthy eating.
BTW (just an FYI), men always lose weight faster because of their larger muscle mass.
They've got an advantage there, but at the same time women starve more slowly. So in the course of a famine, women will live longer. Not necessarily an advantage in our country, but a survival advantage nonetheless.
I wish you and your MIL the best of luck! 
