There was an article here yesterday[1] about a study showing a correlation between Glucosamine and reduced lung cancer mortality. The top comment[2] challenged

There was an article here yesterday[1] about a study showing a correlation between Glucosamine and reduced lung cancer mortality. The top comment[2] challenged the worth of the study on the grounds that these sort of observational studies in large populations have too many confounders to be taken seriously. There's truth to that point, but it's interesting to see which topics slide into skepticism and critiques of method, and which take results at face value and build a discussion on top of them. [1] https://news.ycombinator.com/item?id=31746980 https://news.ycombinator.com/item?id=31746980 [2] https://news.ycombinator.com/item?id=31747822 https://news.ycombinator.com/item?id=31747822