i don't know when people became so threatened by the actual sensation of hunger. mine can't have been the only mom who forbid pre-dinner snacks "cuz it would ruin my appetite"?
as long as you're not seriously flagging, and keeping hydrated, just stick to 3 meals. you might need a bit more in the lunch one?
As I ate the oysters with their strong taste of the sea and their faint metallic taste that the cold white wine washed away, leaving only the sea taste and the succulent texture, and as I drank their cold liquid from each shell and washed it down with the crisp taste of the wine, I lost the empty feeling and began to be happy and to make plans.
– Ernest Hemingway