Are you serious? Is that even "legal?"
Of course it's legal silly goose. Welcome to America where you have the opportunity to sell anything and the opportunity to buy anything.
But that doesn't mean you should my St. Patrick's Day buddy.
What's the evidence?
A quick visit to the McDonald's website will provide you all the disgusting details.
Here's all the info you need:
Never eat there again friends if you want to Eat2Live2Love