I'm just a kid of 64 with asthma--Sounds like you are on the right track, I'm a walker too
try to do an hour a day and some weight time too, keep those bones strong!
Like you say, "good carb","good fat" great point. I read so much nutritional stuff, I drive my friends crazy. But as my good ol'doc(he would hate that, think he is late 50's) always says, almost every problem we have with our bodies is influenced by, diet, exercise, and genes; and, we can change two of those!!
I think it should be a healthy eating forum??
Keep on walkin' friend,
Nan