Soy milk can replace cow?

"Yes, if the problem is lactose intolerance," explains Renata Cocco, a pediatrician at the Federal University of São Paulo (Unifesp). "If not, the cow is better because it has more calcium." It's good to know, though, that a group of cow's milk protein, casein, can cause reactions such as hives. So, if in doubt, consult your pediatrician. Only he can can recommend the most appropriate type of milk for your child.