The actual dataset can be found by scrolling down to "Getting the Data" (Section 5).

Scientific evidence for popular dietary supplements.  Turns out there isn't a shred of evidence to support that Vitamin A is beneficial.  Based on human, randomized placebo-controlled trials. 

More than 500,000 men and women between the age of 50 and 71 participated in this 10-year study that concludes that 11% of deaths in men and 16% of deaths in women could have been prevented if participants cut their red meat consumption. [The study was published 3 years ago, but it's still interesting]. Mostly empirical, though also a bit subjective.

For decades, the World Database of Happiness has tracked how happy people are.