FrieslandCampina, in collaboration with Utrecht University, Wageningen University & Research, and Imperial College London, has published a scientific review highlighting the effects of bovine immunoglobulins on the human immune system. It gives an in-depth overview of sources of bovine Ig and in vivo studies on the effect of bovine Ig on allergy and infection. Potential mechanisms of action are discussed. The review concludes that inclusion of oral bovine immunoglobulins in infant nutrition may be a promising approach to support the immune function of infants.