yes, it become more and more evident that allergic conditions are inherited. The most important one, ATOPY, is defined like a genetic predisposition of some individuals to overproduction of E and G immunoglobulins against some common environmental antigens, mainly inhalated (polens, dust mites), but also to food, drugs etc.
I agree with the comments of Prof. Solcan, because if parents are allergic to milk protein their offspring may suffer for allergic situation with milk protein