I'm doing the Michael Mosely Blood sugar diet. You could make the same meals for your family and just drop the carbs for yours?
I find it easy, and I am old and have an underachieve thyroid. I have lost 2 kilos in 3 weeks, but tbh I don't have that much to lose so it's slower.
My dog walking is also my main form of exercise. I am planning on turning 3 of her Wlks/runs into jogs for me.
I have Sunday off. It works for me.
there is a web site and a book for the Blood sugar diet, it was also serialised in the Daily Mail I think. And there is a thread on it, so you could come over and get support too and find out more about it.