Hampton Creek Just MayoBiz Carson/Business Insider
Last week, the Food and Drug Administration told Hampton Creek that the company couldn't call its eggless mayonnaise "Just Mayo" anymore.
Behind the controversy is a complicated set of rules the FDA calls the "Standards of Identity," which set the bar for what foods can and cannot be called.
But Just Mayo isn't alone in calling itself something other than what it actually is — lots of other everyday foods either leave out the basic ingredients they purport to contain or are stuffed with things a consumer would never expect based on the name.
Find out whether the food you're eating is what you think it is.