If you know all their meals contain sugar and a big coke contains so much sugar, why the fuck buy a coke ?
You can buy soda too at McDonalds.
You can get salads too there...
so if he wanted to prove a point you couldn't survive with mcD... No you can't if you're too foooking stupid, lol.

(I don't like McD by the way, but you can get half decent things there if you really want, lol)