I would like to make a drive-by post and say I was morbidly obese seven years ago. I lost 110 pounds over 18 months and am now in the normal weight range for my height (and have been stable within 10 pounds since). I drink soda (mostly diet), sugary drinks, processed food, and all that jazz. I do not exercise aside from taking occasional walks around my neighborhood. All I did to lose the weight is limit myself to 1200 calories per day. It apparently worked quite well. Now I eat pretty much whatever, and generally stick around 2000-2500 calories per day.
My blood pressure and all those standard medical measurements are normal and healthy. I don't even have dental cavities. (I haven't had my chakras checked though, so I could be wrong.) This is the "Put It Down, Fatty!" diet. (Find my book on Lulu.com.) (Mike Huckabee also lost 110 pounds, but he's fatter every time I see him on TV, so he's not putting it down.)
But seriously, I think if people would just watch it a bit, didn't stuff their faces with every food they see, they'd get 75% of the way to optimal healthfulness. The last 25% is vanity.
I think people can spend a lot of effort worrying about all this minutae. My aunt does that. She won't use tupperware (it's plastic, full of chemicals and impurities), she's obsessed with natural stuff. So she squeezes another year of life out of it; I don't think it's worth the grief. Judging from the family history, she'll probably have a stroke when she's 75 regardless.
Just my thoughts.
Incidentally, I had some delicious cake (off a styrofoam plate) after Pentecost vespers this evening.