Blumenthal and colleagues(40) found no statistical differences between stomach emptying rate in cold (0-4°C), room temperature (25°C) or body temperature (37°C) formula in 20 healthy preterm infants with a mean birth weight of 2.75 ± 0-18 (range 1.49-3.38) kg, and gestation 37-7 ± 0.6 (range 34-41) weeks. They also reported that in all infants the cold feeds were well tolerated and produced no obvious clinical effects.