UK searches for heartburn-related symptoms up 300% this year – and a new wave of diet and medication side effects could be fuelling it.

A wave of new search data reveals heartburn is more than just a common complaint—it’s becoming a growing health concern in the UK and globally. According to Food Hygiene Expert and former chef Mark McShane from Food Hygiene Certificate, modern diets, rising weight loss jab usage, and age-related digestive changes are creating a “perfect recipe” for acid reflux.

“The days of blaming just spicy curry are over,” says McShane. “We’re seeing a much broader mix of culprits – from high-fat snack culture to the side effects of popular new weight loss drugs. The problem is compounding with age, too.”

Search Data Confirms the Rise

6.2 million global searches in the past month – up 4% year-on-year (Glimpse, July 2025)
370,000 UK searches – a 300% annual increase
Consistent spikes appear each winter, particularly during festive periods

Common Causes – and What’s New in 2025

Ageing gut function – As people age, the muscle at the base of the oesophagus weakens, making it easier for acid to escape. Adults over 40 are more likely to experience regular symptoms.
Weight loss jabs (GLP-1 medications) – Drugs like semaglutide (Ozempic, Wegovy) delay stomach emptying, increasing pressure and the chance of acid reflux.
Modern eating habits – Rushing meals, eating late, skipping food then bingeing, and lying down after eating all increase acid build-up.
Ultra-processed diets – Takeaways, fizzy drinks and snack foods packed with fat and additives increase acid levels.
Low movement, high stress – Poor posture and stress slow digestion and increase heartburn frequency.

Foods That Trigger Heartburn

McShane’s top offenders include:

Fried and fatty foods – Chips, takeaways, creamy sauces
Caffeine – Coffee, energy drinks and some teas
Tomato-based sauces – Pasta, pizza, tinned soup
Chocolate – High in fat and mild stimulants
Alcohol – Particularly red wine, prosecco and spirits
Citrus fruits and juices – Especially oranges, lemons, grapefruits
Peppermint – Often mistaken as soothing, but relaxes the stomach valve
Carbonated drinks – Add pressure to the stomach lining, forcing acid upward

Why It’s Worse Now

“The idea that heartburn only affects older people is outdated,” McShane says. “Between weight loss meds and energy drinks, younger adults are increasingly affected too—often with no clue what’s causing it.”

UK evening meal times remain late (often after 8pm)
Fibre intake remains below NHS-recommended levels in most age groups
Fizzy drinks and overuse of antacids can actually worsen symptoms over time

How to Reduce Risk

Eat smaller portions more regularly
Don’t lie down after meals – stay upright for at least two hours
Reduce intake of known triggers and increase fibre-rich foods like oats and greens
Cut down on caffeine, sugar, alcohol and ultra-processed snacks
Support digestion with herbal teas like ginger or chamomile

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