A sweet new drink craze is bubbling up online, and dentists are cringing.

The latest fountain option, dubbed heavy soda, promises an extra blast of syrup for maximum sweetness and a flavor strong enough to withstand melting ice.

According to Reddit threads and viral TikTok videos, some gas stations in southern Missouri have begun offering the concoction, with machines labeled “heavy” for popular sodas like Pepsi, Mountain Dew and Dr Pepper.

The internet is fizzing with chatter over the trend, leaving some people shocked and others curious.

“Not going to lie — that sounds gross,” one person said on the subreddit r/Soda. “Already sweet enough.”

“This would take me out, I fear,” someone else said.

Some Midwesterners said the trend was new to them, but they weren’t necessarily opposed

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