Jessica Gooch writes: My understanding is that congenital lactose intolerance is very rare. But these days I always seem to be coming across people who claim to have this condition. We have one staying with us at the moment. This person can't tolerate some dairy products eg milk and hard cheese, but somehow they can tolerate others eg ice-cream, custard, chocolate, soft cheese. One thing that I have noticed related to my own personal experience with milk intolerance is the amount of milk ingested related to other foods ingested recently. If dairy products are taken on an empty stomach, loose stools & flatus occur within 30 minutes. However, if I have a milk shake with dinner after eating regular meals during the day, it's just a gassy problem a little later. (I hope this isn't more information than you wanted.) So, in my case it definately seems to be a dose-related problem. Laura Hart Winter Park, FL *********************************************** 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