N.R.
There is a lot of information out there about the bad effects of soy on young children - ie) early puberty. My daughter is lactose intolerant, and ALWAYS wants to drink milk. The pediatrician thought that she was drinking too much milk (lactaid) so I would supplement with soy. I have to tell you, I noticed with my own eyes - that my daughter was having crazy mood swings, and started getting long, really dark hair on her arms and legs at AGE 3!!!!! After I read an article about soy - I cut it out completely and after a few months the hair on her arms and legs started disappearing, and the mood swings stopped. I find it more than a coincidence....so if it were me - I wouldn't do it! Good luck!