Epidemiology: Separating the Wheat from the Chaff

“There are only a handful of ways to do a study properly, but one thousand ways to do it wrong.”
We often talk on the podcast about the difference between good and bad studies, about studies that prove causation versus the ones that just show an association. The field of nutrition research is particularly problematic these days and even John Ioannidis is sounding the alarm. I recently wrote an article for Medscape about what readers need to look for to decide if a study is worth its salt or needs to be delicately ignored.
The article is free but registration is required.
https://www.medscape.com/viewarticle/900381