6 ways to manage acid reflux naturally: Harvard-trained gut doctor shares simple tips without medications

A burning sensation in the chest, sour taste in the mouth or discomfort after a meal can make everyday eating and sleeping surprisingly difficult. The timing of meals, sleeping position and even what you do in the minutes after eating can influence how much stomach acid travels back into the oesophagus. While occasional reflux is common, recurring symptoms may need medical attention. Simple lifestyle changes can sometimes help reduce nighttime acid exposure and post-meal discomfort. Harvard-trained gut doctor Dr Saurabh Sethi has shared six practical ways to manage acid reflux naturally, from changing your sleeping position to taking a short walk after meals.

Sleep on your left side

Your sleeping position can affect reflux, particularly at night. Dr Sethi recommends sleeping on the left side because it can help clear stomach acid more quickly and reduce the time the oesophagus is exposed to acid. Research and clinical guidelines also support left-side sleeping over right-side or back sleeping for nighttime reflux.

Finish eating 2–3 hours before bed

Late-night meals can make reflux worse because lying down soon after eating makes it easier for stomach contents to move upwards. Dr Sethi recommends leaving a two- to three-hour gap between your final meal and bedtime. The American College of Gastroenterology similarly suggests avoiding meals within two to three hours of going to bed.

Raise your bed by 6–8 inches

Gravity can be useful when managing nighttime reflux. Elevating the head of the bed can reduce acid exposure while you sleep, with Dr Sethi recommending a 6–8-inch elevation. The ACG also recommends head-of-bed elevation for people with nighttime GERD symptoms. A wedge or bed elevation is preferable to simply piling up pillows.

Cut refined carbs and added sugar

Instead of automatically blaming every spicy food, Dr Sethi suggests paying attention to refined carbohydrates and sugar. Research has linked high-sugar and refined-carbohydrate dietary patterns with reflux-related symptoms, although evidence around individual foods remains mixed. Spicy foods can trigger symptoms in some people, so identifying personal triggers is more useful than assuming everyone needs to avoid the same foods.

Take a 10-minute post-meal walk

Staying upright after eating may help keep stomach contents from moving back into the oesophagus. Dr Sethi recommends a short walk of around 10 minutes after meals, particularly dinner. Research examining lifestyle factors has also found that sitting or walking rather than lying down after eating may be beneficial for people with reflux.

View this post on Instagram

A post shared by Saurabh Sethi MD MPH | Gastroenterologist (@doctor.sethi)

Chew sugar-free, non-mint gum

Chewing sugar-free gum after meals may offer another simple way to manage reflux. It increases saliva production and swallowing, helping clear acid from the oesophagus. Dr Sethi recommends avoiding peppermint gum because mint can relax the lower oesophageal sphincter, the valve that helps prevent stomach contents from flowing upwards.