Well, since recently changing to a vegan diet I can relate to not eating enough. I feel hungry so much more often now, all the time actually.
Also, as I am about to go polyphasic this kinda scares me, maybe you would've handled it better if you weren't polyphasic...?
I guess I'll see for myself pretty soon.
I think I'll just schedule to eat 6 times a day in sync with my naps, that should get me eating enough, though i wonder whether that's healthy.