Well obviously you have to decide on a case-by-case basis whether Real Science is necessary, but the butter mind thing is looking pretty good:

http://quantifiedself.com/2011/01/results-of-the-buttermind-experiment/

W. T. F! ?

A half stick of butter every day makes you smarter - and in contrast to an equivalent amount of other saturated fats? That's really rather surprising. I would like to see more research on that. Because it is kind of awesome.