A new-ish video from YouTuber Molten Science conducts an experiment to show what exactly happens when you put Coca-Cola in your stomach. He does so by combining the Don Draper-shilled beverage with a clear substance meant to stimulate stomach acid. Together, they immediately start fizzing- and not in the satisfying way a Coke does when it's poured into a glass on its own. It emits a startling smoke before settling down into a tar-like concoction. After pouring enough Coke to make the brew spill over, the YouTuber comments on how warm the glass has become. He also manipulates it with a piece of wood to show its new, sludgy consistency.
The video has been viewed more than 9 million times on Facebook, according to the Daily Mail, but it’s not without its critics. Some say the clear substance isn’t a good representation of stomach acid. One person said in totally scientific, non-anecdotal fashion, “I can tell you with 100 per cent certainty, from my own personal observation, that this also happens in the human stomach.”