You know, when I eat less processed food and more whole foods, a couple of things happen which I need to constantly remind myself about:
1. I feel better and have more energy.
2. My meals are more satisfying and I have fewer crap cravings.
Simple really but incredibly, I forget about these two things very easily. I'm keeping them on little slips of paper and putting them in the kitchen and at my desk to remind myself.
This isn't a complex problem I have, I just need to keep that in mind.