I would hypothesise that a nutritional label like "high fibre" or "low salt" might well have the same dissuading effect. A follow-up study is called for! Other

I would hypothesise that a nutritional label like "high fibre" or "low salt" might well have the same dissuading effect. A follow-up study is called for! Other labels that might have a similar effect are religious ones like kosher or halal.