My dd Nitara is on an elemental medical formula (she's 3 and has some GI and food allergy issues). Yesterday she ate some potato skins for the first time in ages. She ate them at noon and at 3:30 she pooped them out. Does this seem too fast? The elemental formula is similar to breastmilk as far as how broken down it is. It is even normal to have seeds in it. I'm wondering if it might be the formula that's causing this fast digestion, or if this is just too fast even on the formula. If you have a baby who is mostly breastfed and they eat some food, how fast does it pass through?