[alleskleber]

The reminds me of the "bottomless bowls" experiment [0]. I know it from a TV show where it was recreated a few years ago but it was actually a real study.

> Using self-refilling soup bowls, this study examined whether visual cues related to portion size can influence intake volume without altering either estimated intake or satiation.

> Participants who were unknowingly eating from self-refilling bowls ate more soup than those eating from normal soup bowls. However, despite consuming 73% more, they did not believe they had consumed more, nor did they perceive themselves as more sated than those eating from normal bowls. This was unaffected by BMI.

[0] https://www.ncbi.nlm.nih.gov/pubmed/15761167