Eating the rainbow: The effect of food colour on consumption

Colourful foods often are thought to be more appealing than monochrome foods – but what evidence is there for colour’s effect on consumption? And why is colour important?

Researchers from the University of Oxford’s Department of Experimental Psychology reviewed evidence for colour’s effect on satiety, the impact of colour monotony on intake, and the effect of the display and number of colours on consumption. They found that evidence is mixed as to whether colour variety alone can affect food intake — and there are several theories, although none conclusive, about why colour might affect consumption.

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