This PBS Program was an episode aired on Frontline.  It investigates the multi-billion dollar vitamin and supplement industry which, unbeknownst to most of the general public, has very limited FDA oversight.  The show was originally aired on Tuesday, January 19th, 2016, so it's as up-to-date as you can get.  The show lasts about 53 minutes, so I didn't embed it here as I do with most videos I find useful.  Make sure you have enough time, get a cup of coffee (not an energy drink!), and sit back and learn what you need to do to protect your health.  If you've got thoughts about the video, or simply want some information about it before investing 53 minutes of your time, please fill out the comment section below.  Thanks!