Well, lime juice can prevent or cure scurvy, it's just that other things have more vitamin C. And the British navy did use lime juice. So neither of those is sh

Well, lime juice can prevent or cure scurvy, it's just that other things have more vitamin C. And the British navy did use lime juice. So neither of those is shown to be "wrong" here; instead, we're shown more of the story than these two facts alone can give us.