The great refreshing taste of Diet Coke with no sugar and no calories. Crisp and refreshing with no sugar and no calories. 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. Love what you love, Diet Coke. Delicious and refreshing. No sugar. No calories. Suitable for Vegetarians. Suitable for Vegans.