Wheatgrass: Selenium superstar, or poison?

[drewab]

So I had not had wheatgrass until today.  On a whim, I decided to have 2 oz. of the thick green juice.  It tasted sweet, pungent, and bitter at the same time. It left an odd aftertaste in my esophagus for several hours.  

 

Shortly after consuming I added in 2 oz. into chronometer only to discover its bizarre nutritional properties.  Just this small does contains a whopping 2691% of selenium, as well as a big dose of b2 and some zinc (2.9mg) - all for 3.8 calories.  That % even puts brazil nuts to shame, but that dose seems quite excessive.

 

While I doubt I'll be consuming it anytime soon, it does make me wonder if there is a place for a small amount of this in the diet, or if it's poison. 

 

http://imgur.com/RqagL6m