Spinach is one of the top contenders for "Least Liked Food." It is excellent Sith-repellent because all Sith hate it and think they'll die if they get in contact with it. It is said that Darth Elmo pretended not to hate it to make people think that he wasn't a Sith, they then invited him into their home where the treacherous Sith Lord killed them. If the Sith knew there was Spinach on a planet they would most likely destroy it. Unless said Sith was Darth Popeye.