I actually kind of like this French method. I skimmed a bit of a similar book and realized how similar it was to food at home. Junk food does have a place in our hearts and on our shelf, but I realized how French it was growing up.
1.) No more or less than four times a day eating. Breakfast, lunch, dinner, after school snack. If we were hungry between meals, my dad would say something like, "Good, I'm sure you'll love the salmon I'm making for tonight. Dinner's in two hours." As a result, my brother and I had a pretty adult palate by the time we were in kindergarten.
2.) Even as teenagers, we always ate sitting down at the table.
3.) Real food. Always. Mom buys fresh bread and sliced sandwich meat for lunches. Our dinners always had real meat, real dairy, fresh vegetables, and sometimes homemade pasta. We had lucky charms often enough for breakfast, but besides that we were good at eating real food. I'm so used to my mom's homemade Mac and cheese that I could never finish the Kraft stuff, even when I was a kid.
4.) We drink water. Sure, you'll still have to wrestle my coca-cola away from me, but for as long as I can remember the four of us always had reusable water bottles. We carry them everywhere and fill up several times a day. Let it never be said I don't drink enough water.
5.) My brother and I walked EVERYWHERE. If something was within a mile distance or if it was school, we walked. After Mom showed us the route to school, we biked as soon as we hit kindergarten through most of middle school.
6.) We were also taught to eat slowly and savor the food. Several times during meals my dad had us put our forks down and wait a while. He'd ask, "Do you feel hungry still?" And thus we also learned that just because there's food left on the plate and it's tasty doesn't mean you have to eat it. This one changed when we were always-hungry ravenous teens, but at least now we don't eat just out of cravings or boredom (usually.)
My brother and I are both trim and healthy (and he's athletic to boot.) So the French way can be good AS LONG AS YOU FOLLOW IT THROUGHLY. You can't just pick out the bits you like and forget the rest.