Previous research has shown that the Guiding Stars ProgramTM (GSP), a shelf-tag nutrition information system used in some supermarkets in the United States (US), increases consumer demand for ready-to-eat (RTE) breakfast cereals that the program considers more nutritious. Further, consumer demand for cereals is found to respond to price. Here we simulate potential changes in RTE cereal consumption predicted by estimated demand if a GSP or a 10% price manipulation were in effect nationwide in the US, and measure the impact on intakes of whole grains, added sugars, sodium, and calories. We find small effects for the GSP and somewhat larger ones for a 10% price intervention.