I have found several articles on milk supply particularly helpful when discussing the topic with professionals and mothers. The research on this topic done is Australia is fascinating. Three articles LCs may find useful if they haven't read them, or haven't read them recently: JHL 11(1), 1995 pp 21-26 "Infant Demand and Milk Supply, Part 1: Infant Demand and Milk Production in Lactating Women," Daly, Steven and Peter E. Hartmann. JHL 11(1), 1995 pp 27-37 "... Part 2: The Short-Term Control of Milk Synthesis in Lactating Women." "Infant Regulation of Breastmilk Intakes and the Effects on Milk Supply and Composition," Sandra Purnell and Ken Purnell (Nursing Mothers' Association of Australia Lactation Resource Centre Topic in Breastfeeding Set VII, October 1995. The storage capacity of various mothers' breasts is discussed, which I found very interesting, since I've known women who had lovely, healthy babies who nursed less often than I'd been led to believe was necessary. Here's an interesting paragraph from Part 2 of the JHL articles. I think the last sentence is the most important, and I'd encourage everyone to read both articles before using the information so they have a total picture of the research and conclusions: "Newton and Newton recognized that if a mother's potential for storage of milk was low, high milk production would still be possible if feeding was more frequent. Indeed, our observations suggest that storage capacity may be of importance in determining how the infant's demand for milk is met by the mother. One of our subjects produced approximately 900 mL/24 h of milk, but she was small-breasted and had a small storage capacity for her right and left breasts of 111 and 81 mL, respectively. Thus, the maximum amount ofmik that this woman appeared to be able to store was approximately 20 percent of her infant's 24 h milk intake. From her breast volume changes over time it appears that her infant met his demand for milk by breastfeeding more frequently (each breast offered approx. eight times per 24h; ...). In contrast, another subject, who produced a similar volume of milk per 24 h, was a larger-breasted woman with large storage capacities for her right and left breasts of approx. 600 and 180 mL, respectively, allowing her to store nearly 90 percent of her infant's 24 h intake. This subject's infant consumed larger volumes of milk at fewer and more variably spaced breastfeeds (each breast offered four or five times per 24 h...). Therefore, mothers with a greater storage capacity may have more flexibility with regard to their patterns of breastfeeding." Leslie Ayre-Jaschke, BEd, IBCLC Peace River, Alberta, Canada