Systems and devices for controlling delivery of a breast milk supplement are described which include a nipple component including aperture; a guard component attached to the nipple component; a supplement reservoir including a port with a controllable valve, the supplement reservoir adapted to contain one or more breast milk supplements, a flow conduit disposed within at least a portion of the nipple component and having a first end in fluid communication with the aperture and a second end in fluid communication with the port; a data storage component including a breast milk supplement regimen; and a control unit operably coupled to the controllable valve and the data storage component and including a microprocessor and circuitry, the circuitry including actuation circuitry configured to actuate the controllable valve to module release of the one or more breast milk supplements based on the breast milk supplement regimen.