system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] What, if anything, does Vader eat? If Han didn't ruin it, did he plan to just sit there during his Bespin dinner party?
gpt
Vader's suit had the ability to give him intravenous nutrition via the countless needles that pierce into his body. Also on the neck of the armor, tubes that reached his mouth could be connected to containers of vitapaste that he could slowly consume. However, Vader often refused it because of the terrible taste. 

When in his meditation chambers or bacta tanks outside of his armor, Vader often had a more robust feeding tube that allowed him to consume the very same foul paste or other forms of liquid nutrition. 

And yes, on Bespin, Vader would have simply sat at the table and intimidated everyone until he made his move.