If you've had a bad day, you might reach for a tub of Ben and Jerry's for comfort.
But it turns out you might as well chew on a carrot stick - or eat nothing at all.
Comfort food may not comfort us any more than other foods - or have any more benefit than going without, a study has found.
U.S. researchers found students in a bad mood reported they felt equally cheered up after eating comfort food, other foods they did not consider comfort foods or after eating nothing.
The findings could help people trying to lose weight, or eat more healthily.
As part of the study researchers asked 100 college students to rate their favourite comfort foods.
They then induced a bad mood in the students by making them watch clips from sad films.
They then fed half the students their favourite comfort foods, and the other half ate foods they enjoyed but wouldn't consider comfort food.
Once the students had finished eating, the researchers asked the students how they felt. It turns out all the students felt better, regardless of what they had eaten.
They repeated the same experiment except this time, half the students ate comfort food, and the other half ate nothing.
After a few minutes, both groups felt equally better and researchers said the comfort food had no effect on mood.
Writing in the report, lead researcher Traci Mann, of the University of Minnesota said: 'Although people believe that comfort foods provide them with mood benefits, comfort foods do not provide comfort beyond that of other foods (or no food).
Researchers admitted the study had significant limitations, one of which being that it only looked at a particular type of 'bad mood' – induced by watching sad films.
They added they didn't look at the real-life contexts in which people eat comfort foods, and said perhaps the comfort from comfort food comes from going to a cafe and acquiring it.
However they said they weren't surprised by the findings as changes in mood are psychological, with food a very weak trigger for changes.
David Levitsky, a professor of nutrition at Cornell University told NPR: 'We tend to look for a magic solution to our problems.
'The idea we can feel better by simply consuming certain foods is very appealing but in actuality, feeling better has nothing to do with the food itself, and it's a very weak psychological effect.'
He added that we don't necessarily need to step away from ice-cream and pizza when we feel sad.
He said: 'There's no harm to it, unless you're overeating, or consistently eating food to avoid coping with big problems.'
The study was published in Health Psychology journal.
