The Only Video You'll Ever Need to Watch About Gluten. Reactions is channel produced by PBS Digital Studios and the American Chemical Society.
On a related note, Foodskey is a site produced by The University of Nottingham who also produces the Periodic Table of Videos. Foodskey is a set of fifteen videos about the science of food. The videos cover topics like nutrition, food security, and crop technology. I've embedded the video about broccoli below.