You guys should check out the documentary "Hungry for change".

My parents have been on a similar health path since they were in their forties (circa 1980). Now they're in their mid 70s and I would'nt know how to describe how healthy and active they are at that age. I think my father can still kick the crap out of me and my bros at country skiing, and not on flat grounds. And him and mom drive 2 times a year from montreal to florida in two days straight. He is 76 yr old and doesn't take one pill...
This is not about diets or magic exercises... Its about a lifestyle and enclose every aspect of ones life.

Anyways, check out "Hungry for change". It is worth it. Your health is worth it...