but there is one set of findings that suggest if you're eating unhealthy food - crisps, snacks, biscuits - if it's put in a red bowl or a red plate, then you'll be likely to eat less." ...

He said: "Snack foods - unhealthy stuff on a red plate - you end up eating a little bit less because it's that red colour on a plate where it seems to trigger some sort of danger or avoidance signal.