It sounds like you are getting your family off to a great start, food-wise. Are you looking at TSP as a weight loss thing then? I'd say just do TSP yourself, and let your family eat as they have been doing.

OTOH I am a newbie here myself. Have had TSP I for a couple of years and did read it and make a half-hearted attempt at it ... however I started it properly a week ago and feel great. I have over 100lb to lose, but will be glad to lose even 70!

All the best
Brenda