I have seen some babies react to beef as well as dairy, but it is very rare. More than likely you have a slipup. This can happen easily: 1. Foods with natural flavors can have dairy in it, with nothing to indicate this on the label. 2. Foods can have dairy in it with nothing at all on the label, as they apparently are only required to list it if it has over a certain percentage in it. Country Crock margerine is an example. The clue with this, according to the company, is that it does contain a D on the label. Thus, if you see a D, you know it has dairy, whether it is listed or not. 3. Eating out can be a challenge. Hard to get honest answers from restaurants. And, innocent sounding foods can be a problem. We think fries are OK. But if the fries are cooked in the same oil that the cheese sticks or breaded onion rings (that have dairy in the coating) are cooked in, then bingo,. 4. Remember that anything with casein or whey in it has dairy in it. Thus, most soy cheeses have casein, and even many tuna fishes have casein in it. Hope this helps. Liz Baldwin (who learned all this from the school of hard knocks as well as reading...) _______________________ Elizabeth N. Baldwin, Esq. Baldwin & Friedman, P.A. 2020 N.E. 163rd St. # 300 N. Miami Beach, Fla. 33162-4970 Phone: 305-944-9100 Home office: 954-929-9090 Fax: 305-949-9029 [log in to unmask] http://www.parentsplace.com/shopping/esq/index.html Breastfeeding and the Law: http://www.lalecheleague.org/LawMain.html