Just updating on our progress:
We've allowed some swypo foods, like banana/egg pancakes (I call them 'banana flaps') but mainly good clean eating. He's been eating smaller portions and snacking less. The hardest has been twice being offered birthday treats in class and having to turn them down. I think my strategy next time he's in that situation, will be to have him help me make a swypo treat so he doesn't feel entirely deprived.
He has been a bit of a drama queen regarding treats like chocolate and bread, but hasn't been hungry enough to just eat a piece of fruit, so he's survived. In fact, I think anytime a craving hits, I will suggest we make a swypo treat. 1) it will distract him for the time it takes for the craving to pass 2) empower him to feel like he is in control of the food he eats 3) teach him that delicious treats don't always have to come from a package and can be made from real foods.
Although I'm really hoping he'll hold off until the end, I have given him permission to stop anytime after 14 days. I tell ya, those first 10 days or so were rough for him! He considered quitting after day 14, but it helps that my husband has been doing it as well and was going to keep going. The hardest has been when we go out to a restaurant, which my husband loves to do on the weekends. I'd recommend keeping those to a minimum if possible, especially with kids! We are on day 20 now, and the last week or so has been pretty calm (boring, but calm). I'm hoping this last week will be even better. The last few days will be a busy one for my son, so he may get to 30 and not even realize it came and went.