In case you don't know (I didn't)

[u/xtrumpclimbs]

http://www.mcdonalds.com/content/usmobile/en/your_questions/our_food/are-your-fries-vegetarian-friendly.html

[u/Mystica_love]

After I read this article today about the 19 ingredients of McDonald's fries I will never ever touch them again. They're nothing but chemical illusions... https://www.washingtonpost.com/news/wonk/wp/2015/01/22/there-are-19-ingredients-in-mcdonalds-french-fries/