Obviousness of the week: According to a new study, one easy way to make high-school cafeterias more appealing is to demystify the contents of the mystery meat.

[Providing] nutrition information did, in fact, improve the healthy choices made by students. ... Students were also more satisfied with food quality and service quality, [e]ven though the food did not change.

More obviousness: In perhaps the only time someone has used the word "ambiance" to describe a high-school lunchroom, the nutrition info didn't change students' opinions about "pricing, dining room ambiance or perceptions of menu variety."

Slightly less obvious: It did, apparently, make students look a little more kindly on their lunch ladies. "[The nutrition information] seemed to increase satisfaction with the service of the food, especially with the friendliness ratings of the foodservice staff, even though the staff was not supposed to change anything."