New zinc test developed to detect malnourishment

Today's Video of the Day from the Georgia Institute of Technology describes an experimental zinc test that was designed to detect malnourishment. The test may ultimately expose widespread zinc deficiencies, which are responsible for about half a million deaths each year. "In the developing world today, many people may get enough calories but miss out on a lot of nutrients," said study lead author Professor Mark Styczynski.  "You can look at someone and tell if they're getting enough calories but not if they're getting …