Yes, probiotic bifidobacteria are safe. Long term consumption of probiotics by infants and children has been studied thoroughly and their safety has been well documented. The WHO has stated that bifidobacteria are not known to cause infections. Clinical data support the safety of use of B. lactis in food products for infants and young children as well in vulnerable populations such as immuno-immature preterm infants and immuno-sensitive infants. NESTLÉ® Infant Formulae with bifidobacteria have been used since 1991, in over thirty countries. NESTLÉ® CERELAC® with bifidobacteria have been used since 1999, in other markets.