A famous statement of the German philosopher Ludwig Feuerbach is "Der Mensch ist, was er iβt" (you are what you eat), but is it really true that the food we eat modulates the way we think and perceive the world?
Colzato, L.S., Jongkees, B.J., Sellaro, R., van den Wildenberg, W., & Hommel, B. (2014). Eating to stop: Tyrosine supplementation enhances inhibitory control but not response execution. Neuropsychologia http://dx.doi.org/10.1016/j.neuropsychologia.2013.12.027