One thing I have proven to myself is that the earlier I start eating, the more I eat over the course of the day. If I eat a big breakfast, I find that I want to eat more all day long. This is probably because I am a compulsive eater, and my appetite has little to do with actual hunger. I don't have to understand it, to work with it, though. I had a nutrition specialist once advise me to wait until at least 9 a.m. for breakfast. And to eat smaller amounts, evenly spaced throughout the day. I love breakfast,but needs to be later, and more like a brunch. I start the day with coffee, with a little milk in it, and lots of water, until I am ready to eat. Then I have a small meal with a good amount of protein and low carb/sugar. This may horrify "experts" but for now it is going to stay that way. My tracking will reveal what works best for me in the morning.