There’s only one place you could expect to find a story like this. A national newspaper, where it took up nearly a half page. I guessed immediately.
A University study was conducted on 16 rat siblings with 4 different drinks, 2 fizzy and 2 still. The rats consuming fizz became heavier than the rats consuming still. Oddly, neither of the fizz options were plain sparkling water.
A second test was conducted on 20 adults. Those drinking sparkling water at breakfast were hungrier.
Hey presto. Dream headline: “Eau No! Now Scientists say fizzy WATER makes us fat”. Thank you, The Mail on Sunday of 14 May. Can’t see the connection myself.