These fast food secrets continue to perplex customers the world over. Welcome to WatchMojo, and today were counting down fast food facts that are kept on the down low, hidden, hard to access, or just plain hard to believe. Our countdown of fast food secrets that will never be revealed includes McDonalds, Burger King, Dairy Queen, and more! Do you know any fast food secrets? Let us know in the comments below.

Watch more great food videos here:
Top 10 Most Outrageous Fast Food Burgers: https://youtu.be/atkl2sUxs_w
Top 20 Junk Food and Drink FAILS: https://youtu.be/W-ptMCYQuco
Top 10 Best Fast Food Desserts: https://youtu.be/fM2H1gWMJmQ

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#McDonalds
#Facts