When the immune parameters representing clinical symptoms
characteristic of atopic dermatitis, pollinosis and allergic rhinitis
normalize, the patients recover from allergic diseases
(67,75). Therefore, normalization of these immune parameters
by foods is helpful in that allergic patients recover their health
and persons with a predisposition to allergies may avoid
falling ill. Parietaria extract (76,77), herbal extract (78) and
lactic acid bacteria (67,79–89) have been found to suppress
allergic diseases in human subjects as well as animal models.