'Edible stop signs' in snack foods could serve as visual cue to stop eating(©dionisvera shutterstock.com)

(Relaxnews) - Inserting visual cues on snack bags could help consumers master portion control and recognize when it's quittin' time, suggests a new study.

Describing the mechanism as "edible stop signs," a team of researchers from Cornell University proposes that adding visual markers on food packages could help people recognize serving sizes and tell them when to stop eating.

For the study, published online in Health Psychology, researchers used tubes of Lay's Stackables chips similar to Pringles, in which chips are stacked neatly in a column.