Research by Andersen, Byrne, and Wang confirms that what we see influences what we eat. The investigators report that in 3 online studies they “manipulated food colour and flavour variety and reproducibly . . . 30 repetitions satiated. . . . Neither colour nor flavour variety reliably moderated any of the responses. Therefore, the results suggest that a more pronounced variety may be required to alter imagery-induced satiation.” Seeing the same food image more than once (specifically more than 30 times) can make us feel full; seeing the image produces much the same effect in our heads as having tasted the sort of food pictured.
T. Andersen, D. Byrne, and Q. Wang. 2023. “Imagined Eating – An Investigation of Priming and Sensory-Specific Satiety.” Appetite, vol. 182, 106421, https://doi.org/10.1016/j.appet.2022.106421.