Busy moms might be sending their babies the wrong signal if they feed evening breast milk that was expressed in the morning, a new study suggests.
The composition of breast milk changes throughout the day, including hormones thought to influence babies' wake/sleep patterns, researchers reported Friday in Frontiers in Nutrition.
A mother might unintentionally disturb her infant's rest if she stores breast milk in the morning and then provides it in the afternoon or evening, researchers warned.
"Breast milk is a dynamic food: Consideration should be given to the time it is fed to the infant when expressed breast milk is used," lead researcher Melissa Woortman said in a news release. She's a recent doctoral graduate in nutritional sciences of Rutgers University in New Brunswick, N.J.
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