We put supermarket diet fizzy drinks to the test (Picture: Courtney Pochin)If you’re a Diet Coke fan, I have no doubt that you take your allegiance to the fizzy drink very seriously. I could instantly tell it wasn’t an actual Diet Coke – it just tastes fake. It’s really hard to distinguish between the two, and in a blind taste test of both, it took a while to work out which was which. It’s not anywhere near as crisp and fizzy as Diet Coke, but it’s got a good flavour and doesn’t taste too sweet. Diet Coke CheckTesco's Diet Cola CheckLidl Freeway Diet Cola CheckSainsbury's Diet Cola CheckAldi's Diet Vive CheckAsda's Diet Cola Check Sign up to Metro's The Slice newsletter for your guide to what's on in London, with trusted reviews, offers and giveaways.

Source: The Star February 24, 2026 13:07 UTC