You may have heard that the Indy 500 winner celebrates with a bottle of milk and want to know why. We're here to help.

Not alike any celebratory antics in American sports, the Indy 500's uniqueness in saluting the winner of the annual race is certainly part in what makes it 'The Greatest Spectacle in Racing'.

The Indy 500 winner from 1938 through 1941 and in 1946 (after a hiatus for World War II) each drank milk in Victory Circle. Foster later explained buttermilk was what he grew up drinking to ...

But we have had a winner with skim milk." If three-time INDYCAR champion Alex Palou wins the Indy 500, his choice in milk is easy. "Whole milk," Palou told me. "Whole milk always.