I find the riffs where the participant didn't lose weight more interesting. My prior on this is that any low-variability diet should lead to weight loss: peopl

I find the riffs where the participant didn't lose weight more interesting. My prior on this is that any low-variability diet should lead to weight loss: people get bored of eating the same N things, and eat less. That should be true of anything: potatoes and dairy, potatoes and chicken, potatoes and cabbage, etc. If there were a big n=lots study showing that a certain low-variability diet did NOT lead to weight loss, I'd consider that to be a major finding. Using that standard, riffs like the "potatoes and eggs" are interesting: no clear trend in the subject's weight. But of course, that's an n=1...