Any change in dietary habits confronts the psychology of eating - which could be focused on more and offer that marvellous catalyst of awareness which leads to the aquisitiion of 'tools' to deal with the situation.
One aspect of playing with carbohydrate ingestion (prominent with Glycemic Index, Caloric Restriction, Atkins and similar programs) is the habit of 'bread'.
Bread in some form plays a large part in a standard North American diet and taking that out of the picture can be distressing.
Have had satisfying results in replacing the 'bread' with Romaine lettuce leaves. It makes more a pocket than a flat surface but you can put anything in it - egg salad, cream cheese and lox, chicken salad, roasted veggies, cheese and fruit - etc.
The surprising (it's common sense but surprising as often the obvious is) thing is that when we feed the body the nutrients it needs we (the presence in that body) are satified with the 'fuel'. Cravings cease. God - what a freedom! And we become aware - and lose the fear - of just how little we actually need to eat to be healthy and happy. So - that huge muffin can be replaced (oh, sure there may need to be some stages trotted through) with a lovely crisp Romaine lettuce leaf with cottage cheese, slices of apple, a few pecans........
What I'm trying to say it that there is a level beyond deprivation or sacrifice.
Have also had success with making chappatis from half chick pea flour, half defatted soya flour. Cooked overlong they become crisp and provide that
'crunch' we seem to enjoy.