Thats very true. I try and have eggs and ham, for breakfast, or dukan porridge and scrambled eggs, I'm not hungry first thing, but if I wait till 10ish then have it , then lunch at 1 that takes me right up to dinner without feeling hungry.
I like to eat protein in the morning because it does really fill me up till lunch. If I just had a yogurt, like I used to I would need to nibble at something mid morning, but if you eat as much as you can of the right things at meal times then you will be satisfied till the next meal.