I eat whatever I want, just not however much I want. Nothing is forbidden, but I tend toward healthier foods because I can eat a lot more of them and I like larger portions. I feel no guilt whatsoever with *what* I eat, the guilt comes when I overeat or binge. Even so, I don't beat myself up.
But then, I do a lot of things "they" say not to do and I've lost 70 lbs. This has been my most successful weight loss attempt ever because I'm actually happy losing weight lol
I wrote an article,
"Breaking Diet Rules: How I Ignored Conventional Diet Wisdom and Lost 70 Lbs" You may enjoy it because it talks about tailoring a plan for YOU as an individual not feeling the need to follow what "they" (doctors etc) say about successful weight loss.
I don't think any foods should be "forbidden" as long as you don't have an allergic reaction or something. Good luck!