PurposeIndividuals, organizations, firms, and governments have been making strenuous effort to promote sustainable and green consumption. However, it is noticeable that a large amount of unattractive produce is ruthlessly discarded and wasted around the globe, resulting in unsustainable consumption behavior, harming long-term business development, and breaking the harmonious relationship between humans and nature. Therefore, to increase consumer literacy toward unaesthetic produce, this research investigates the pivotal role of “natural” labeling in increasing purchase intention toward visually unattractive fruits and vegetables.Design/methodology/approachBy recruiting participants from one of the largest online crowdsourcing platforms (the Credamo), this research conducts three online experimental studies (with two pilot studies) to test three hypotheses based on the cue utilization theory and the lay belief theory.FindingsThe results show that unattractive produce with the “natural” label could significantly increase consumers' purchase intention compared with those without specific labels. The results also reveal that consumers' lay beliefs that natural foods are perceived to be tastier and healthier mediate the positive effects of “natural” labeling (vs no specific labeling) on willingness to purchase.Originality/valueThis research explores competing lay beliefs about unattractive produce. It identifies the positive effects of lay beliefs “natural = tasty and healthy” through “natural” labeling appeal, thus attenuating the misapplication of lay beliefs “unattractive = tasteless and unhealthy” and broadening the application scope of consumer lay belief theory. The findings also contribute to the cue literature by manifesting the positive consequences of the “natural” label playing as a cognitive cue in priming lay beliefs about naturalness. In addition, it also paves a positive way for business practitioners and marketers to develop the produce industry sustainably.