Marsha, Lactose IS lactose, it is always composed of a molecule of glucose and a molecule of galactose bound together. Look in any biochemistry textbook. The IRON in cow's milk is the same as the iron in human milk, there is just too little of it in cow's milk, and there are not the same carrier proteins that make human milk iron more bioavailable. Proteins are a complicated, species specific, genetically coded bunch of compounds that make up much of the structure of the body, and the functional enzymes that allow metabolism to take place at body temperature. Specific proteins are what make a cow a cow, a human a human, etc. It is certainly possible for a person to be both allergic to cow's milk and lactose intolerant. But if your daughter could tolerate your milk when you eliminated dairy from your diet, she was not lactose intolerant at that time. The symptoms can be similar, which is why many people seem to be confused between bovine milk protein allergy and lactose intolerance. -- Catherine Watson Genna, IBCLC New York City mailto:[log in to unmask] *********************************************** The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(TM) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html