So the long short of it is, yeah, that study? it didn’t work. You can’t prolong primate life by keeping them on a calorie restrictive diet (and that doesn’t bode well for human life extension). During the study some of the scientists, encouraged by the thought, went on the diet themselves. If it worked I would have said, what’s a few extra years if you’re hungry all the time?! But as it turns out, I don’t have to.
I could never be part of a study like this because I’d totally sneak treats in for the monkeys all the time. “Aww this little guy looks hungry. Here, have all of my halloween chocolate!”