In the summer of 2013 Sergei Boutenko put 10 endurance athletes (five ultra-runners and five Cross Fitters) on green smoothies and followed them around with his camera to find out the answer to this question. Starting out as healt...
Directed bySergei Boutenko
Written bySergei Boutenko, Valya Boutenko
CountryUnited States
Runtime56 min
On screen
Sergei Boutenko
Ben Chew
Joanne Feinberg