What causes some people to eat more than others? 

Assistant Professor Linnea Polgreen led a study of 290 adults that may help answer this question, in which she measured participants' taste perceptions of chocolate. She found a clear difference between how people perceived taste based on whether they were considered obese or not. 

Polgreen, a health economist, stated in an interview with NutritionInsight: “At this point, our findings are too preliminary to influence the food industry at a policy level. Instead, we think that our findings have the most relevance for ultimately helping to understand why some people may eat more than others and how this may influence the development or progression of obesity.” 

The study was published in an article in the Journal of the Academy of Nutrition and Dietetics.

Results were further discussed in NutritionInsight and Inverse.