President Donald Trump said Wednesday that Coca-Cola agreed to use real cane sugar in its US sodas at his suggestion, though the company did not confirm the change. A shift from high-fructose corn syrup would align US Coke with versions sold in Mexico and Australia. Diet Coke, sweetened with aspartame, would be unaffected.
It will taste different only if you get it fresh.
This is something I’ve experienced. Sometimes Mexican coke tastes great and sometimes it tastes exactly like regular coke.