Jan, Joy's comments on your baby who's not gaining while peeing and pooping remind me of my own experience (i.e., this is *anecdotal*!). My third baby was like this to an extent; OK output but no gain - at 4 wks she was at birthweight. The culprit: allergies. Within a week of cutting out dairy and citrus, she was gaining. I will add that although I thought her output was OK prior to my diet change, it was substantially *better* following the change. The # of wet diapers probably doubled, and the poopy diapers were much more impressive. However, there's an important component to my experience, and that is that my daughter was horribly fussy. It seems that the food sensitivities were causing her to nurse poorly - squirming, fussing, wiggling. After she felt better, she nursed much better, more smoothly, for more than 30 seconds at a time! And my milk supply was noticeably more plentiful once her nursing behavior changed for the better. So I offer this tale knowing that it may not be applicable to your situation - just FWIW. Mary Renard, RN, BSN, IBCLC Lactnet lurker during semester break former IBLCE staff member current pre-med student