Don’t break your fast with a big salad. If you don’t have time for stuff like broth, break it 30 min before your meal with some psyllium husk or chia seeds (prepare those 30 min prior). Using chia seeds 30 min before a meal has helped me. It delays that speed run of your digestive system and keeps that first go a little more regular.
I remember reading somewhere that the physical act of eating, biting, chewing, swallowing, etc is one of the things that gets our digestion moving as the body wants to make room for new food.
So yeah, less frequent eating equals less moving things along, but then once we do eat that’s a trigger for the body to do the opposite.