The record among my clients is also 14 days. It was a baby who was stooling many times a day and fussy... until the mother stopped dairy. Baby calmed and stools stopped for 14 days, then resumed @ one every few days. I envisioned an irritated gut drawing a long sigh of relief before it started back to work. The flip side was a baby who stooled about twice a week almost from the start. The mother ran out of her perinatal vitamins after 6 or 8 weeks. Baby started stooling a few times a day, and seemed to do so more easily. -Diane Wiessinger, LC in NYS