Heartburn on Mounjaro? TikTok Says Try Love Hearts Instead of Rennies

TikTok’s latest viral health hack has taken an unexpected turn – swapping out traditional heartburn tablets like Rennies for retro Love Heart sweets. And according to food safety expert Mark McShane from Food Hygiene Certificate, there may be some truth behind it – especially for people on weight loss medications like Mounjaro, who are more prone to digestive side effects.

A TikTok video breaking down how Love Hearts can act as a quick fix for acid reflux has clocked up hundreds of thousands of views, sparking debate across #guthealth and #mounjaro tagged videos.

“Mounjaro and other GLP-1 weight loss medications are well known for causing acid reflux or heartburn, especially in the early stages,” explains Mark McShane.

“TikTok users are now claiming that sucking on a couple of Love Heart sweets can ease symptoms quicker than a Rennie – and surprisingly, it’s not completely off base.”

Why it might work

Love Heart sweets are made from sodium bicarbonate – a key ingredient also found in some antacids. Combined with sugar and citric acid, they create a fizzy reaction in the mouth that some users say settles the stomach.

“This isn’t medical advice, but from a food science perspective, the sodium bicarbonate in Love Hearts can help neutralise stomach acid – in the same way as some indigestion tablets,” McShane adds.

Are they safer for Mounjaro users?

While traditional antacids are still the go-to recommendation, some people on Mounjaro report that Rennies can cause bloating or worsen nausea. Love Hearts offer a sugary – albeit short-term – alternative that might sit better with sensitive stomachs.

“If you’re on Mounjaro and struggling with nausea or acid, it’s worth speaking to your GP – but keeping a few Love Hearts on hand won’t hurt,” says McShane.
“Just watch the sugar intake, especially if you’re diabetic.”

Final word of caution

While this hack has gained traction on TikTok, it’s not a medical substitute. Anyone regularly experiencing reflux should seek professional guidance, especially if they’re on prescription medications like Mounjaro, Wegovy, or Ozempic.

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