One thing I just read in the book End of Illness I'm reading is the importance of keeping to the same routine day in and day out as far as when you eat and what time you go to bed and get up. He even said that it's more important that you go to bed and get up the same time each day then it is how many hours you sleep. It makes sense to me as if I think about it I feel the best when I sleep from about 10:30 to 5:00.
Some foods to absolutely stay away from: Partially hydrogenated oils, high fructose corn syrup, sodium nitrates and nitrites. Read the labels of everything you eat, if you can't pronounce it or have never heard of it, put it back. Trader Joe's is a great store for this, I shop there almost exclusively. Sugar is another big one to watch out for but a key point in End of Illness is each person needs to find their own plan that works for them and the book tells you how to figure that out. I have a super high metabolism, can eat whatever I want and not put any weight on, so I might be able to tolerate a lot more sugar than you.
Here is a great lecture by a prominent pediatric endocrinologist on how much of a poison sugar is. It's long but watch it, especially for your kids if you have them:
(Greg, not trying to kill your KO stock by the way)