Designing protocol

I have chosen a protocol that incorporates fasting until lunch as well as eliminating sugar and flour. I have included carbs with lower glycemic indices (such as apple, pear, potato and rice) as well as some fat (avocado). I am trying to set this up so that I don’t get uncomfortable with hunger feelings. I’ve been doing this for about a week and notice that I still experience the “hunger pains” about 4-5 hours after eating lunch. I would have expected that by now those would be less intense. The sensation can be so strong that I am uncomfortable and can think of nothing else but food. I am thinking that this is not an urge but true hunger. What do you recommend?