Me and my friend ate enough food to be able to get the energized(dark green) effect. After playing for a few hours we noticed that it never went away. Neither of us have had to eat for multiple hours and we assumed that this had to be a glitch/bug. Not to say i didnt enjoy not having to eat but thought it was something that needed to be known.
p.s. We also got hydrated but this went away over time like it normally should. V 0.53