I too heard Dr. Gordon speak in July. We did have a discussion of this on Lactnet shortly thereafter. It seemed to me that Dr. Gordon believes that all insufficient milk is due to lactation mismanagement. If we are trying to find out any metabolic or genetic factors his is not the talk to look at. Sarah Sarah Friend Barnett LLLL, IBCLC Bronx (New York City), NY - [log in to unmask] " You are not obliged to finish the task, neither are you free to neglect it." R. Tarfon