This is probably very obvious, but, do nutrition facts lie?

I'm not being an ***, like I don't know, but my mom is so stupid, that she thinks nutrition facts lie to make the people think their stuff is healthy. She says this because I like David's Nacho Cheese-flavored sunflower seeds, and she thinks that just by taste, that those seeds have a lot of salt, and the nutrition facts say it only has 225 mg of sodium per 5.25 oz bag. (I did the math.) I want to prove it to her by posting this question.