I have been asked to post this to Lactnet: <<I am interested in finding out if there is any data on the average volume of milk consumed by nursing children. Ideally, I would like to get the average per nursing session, and the total per day, and by a couple of different age groups. For example, the data (if available) might look something like this. (These numbers are just wild guesses I pulled out of thin air. What I am looking for is *real* data!) Volume/Session Volume/Day Child's Weight Newborn 20 mL 150 mL 8 lb 6 months 15 mL 60 mL 14 lb 2 years 10 mL 30 mL 25 lb The reason I am interested is that I am a Ph.D. toxicologist and I am interested in doing some research on toxic chemicals excreted in breast milk. For example, if an agricultural worker is accidentally sprayed with about 500 ml of a 5% malathion solution, I can estimate what the level will be in the milk, but without having some idea of actual volume consumed by a nursing child, I cannot calculate what the actual dose to the child would be. This is important for determining *if* the woman should suspend nursing for a short period of time and, if so, for how long. Jon Mirsalis, Ph.D., D.A.B.T.>> You may respond to him ([log in to unmask]), me ([log in to unmask]) or Lactnet. Thanks in advance, Rita