History was made 40 years ago with the creation of Diet Coke. Within two years, Diet Coke was the world's favourite light cola, and it still is! Diet Coke encourages you to love what you love, celebrating that unapologetic attitude that comes with knowing who you are and what you're into, whether it's ‘cool' or not. So add some sparkle to your day - without sugar or calories - with a crisp, refreshing Diet Coke!. Add some sparkle to your day without the sugar or calories, with a crisp, refreshing Diet Coke!. Celebrating that unapologetic attitude that comes with knowing who you are and what you're into. Suitable for vegans. Love what you love, Diet Coke. Great taste. Carbonated beverage. Delicious and refreshing. Crisp and refreshing with no sugar and no calories. The great refreshing taste of Diet Coke with no sugar and no calories. Suitable for vegetarians. Diet Coke.