Indeed, it seems to be a Photoshopped, color corrected version of the picture from this 2016 article:
http://www.businessinsider.com/soylent-ceo-rob-rhinehart-has...
(pic only: http://static3.businessinsider.com/image/53986ac46bb3f7d3114...)
Re:Soylent’s Next Chapter
by snoldak924 on Monday December 11, 2017 @04:06PM
(#15900441)
Looks like it was just an older bag of soylent. http://www.irishtimes.com/polopoly_fs/1.2729676.1469108251!/...
In the narrow gaps between the fingers on the right, you would also expect his fingers to cast shadows.