I eat about 6x a day....try to eat something every 3 to 4 hours, never allowing myself to get hungry.
But, be aware that 3x a day are small healthy "clean" snacks, such as:
fruit, yogurt, small handful of nuts, etc.
My biggest change has been downsizing my lunch and dinner and not having some kind of dessert for dinner (lowfat ice cream, yogurt bar, etc.), but now that I've been eating like this for a month, it is so much easier to do so....and my appetite has been drastically reduced.
So for dinner, I make sure that my protein is around 3 to 4 ounces
(I used to eat up to 8oz. easily)
and my complex carb is only the size of a "tennis ball"
I've also been eating grapefruit after dinner and I really like it!!!
But, of course I do not do this every day of my life. "Life" does get in the way at times, and I am flexible (a much better word than "cheat").
I bought Tosca Reno's book, The Eat Clean Diet and it has really helped me.
Good Luck