Category: Conditions & Symptoms
For reflux and heartburn, the changes with the strongest evidence are unglamorous ones you can make tonight. Here is what the research supports first, where ginger and DGL licorice honestly sit, and the symptoms that mean stop self-managing and see a doctor.
Category: Conditions | Reading time: ~12 min | Level: Introductory
The most effective heartburn remedies are also the least marketable, which is why you rarely hear about them. Reflux is, at its core, a plumbing problem. A ring of muscle at the top of the stomach is supposed to stay shut, and when it relaxes at the wrong moment, acidic stomach contents wash up into the oesophagus, which has no protective lining to cope with them. That is the burn. Once you see reflux as a mechanical event rather than an acid surplus, the priorities reorder themselves: what matters most is anything that keeps that valve closed and keeps stomach contents where they belong. Almost none of that comes in a bottle.
This guide walks through what the evidence actually supports for occasional reflux and heartburn, starting with the unglamorous lifestyle changes that carry the most weight, then giving ginger and DGL licorice the honest, qualified treatment they deserve. It is educational, not a treatment plan. Frequent or worsening reflux is a medical matter, and some of the symptoms that resemble heartburn are not heartburn at all.
Acid reflux is the backward flow of stomach contents into the oesophagus. The gatekeeper is the lower oesophageal sphincter, a muscular ring that should open only to let food down and then close. In reflux, it relaxes when it should not, or is overwhelmed by pressure from above. Heartburn, the burning sensation behind the breastbone, is the most familiar symptom; regurgitation, a sour or bitter taste rising into the throat, is the other classic one.
Several everyday factors push on this system. Extra weight around the abdomen raises pressure on the stomach. A large or fatty meal both stretches the stomach and slows its emptying. Lying down removes gravity's help. Smoking and alcohol both relax the sphincter. Understanding these levers is the whole point, because they are exactly the things you can move.
The interventions with the best evidence for reflux are behavioural, and a broad review by Ness-Jensen and colleagues gathered them together [1]. Four stand out.
Weight, if you carry excess around the middle. Abdominal weight increases pressure on the stomach and is one of the more consistent drivers of reflux. A large cohort study by Jacobson and colleagues found that reflux symptoms rose steadily with body-mass index, and importantly that even modest weight gain within the normal range increased symptoms, while weight loss reduced them [2]. This is not about a target on a chart; it is about the mechanical load on your stomach.
Head-of-bed elevation for night-time symptoms. Raising the head of the bed by around 15 to 20cm, using sturdy blocks under the bedposts or a foam wedge, lets gravity keep acid down while you sleep. Stacking pillows does not work as well, because it bends you at the waist and can raise abdominal pressure instead.
Meal timing. Not eating within about three hours of lying down gives the stomach time to empty before gravity stops helping. Late, heavy dinners are a common and fixable trigger.
Stopping smoking. Tobacco relaxes the sphincter and reduces saliva, which normally helps neutralise and clear acid. Quitting helps reflux alongside everything else it helps.
Trigger foods, the usual suspects of coffee, chocolate, alcohol, fat, spice and acidic foods, matter too, but they are individual. A short food-and-symptom diary beats a blanket elimination, because it finds your triggers rather than someone else's.
Ginger is a reasonable thing to be curious about and an easy thing to overstate. Its plausible logic is real: ginger has prokinetic properties, meaning it can encourage the stomach to empty faster, and a stomach that empties promptly has less content to reflux. Ginger is also genuinely useful for nausea, which often travels with digestive upset.
The problem is that direct trial evidence for ginger in reflux specifically is limited. Most of what supports it is mechanistic or drawn from adjacent uses like nausea and general dyspepsia, not from robust reflux trials. So the honest grade is limited. Some people find a warm ginger tea settling, and in modest amounts it is well tolerated. But large quantities can occasionally do the opposite and irritate, and it should be framed as an optional comfort measure rather than a treatment. If you enjoy it and it helps, that is a fine reason to use it; just do not expect it to substitute for the mechanical changes above.
Deglycyrrhizinated licorice, usually shortened to DGL, is a fixture of the natural heartburn aisle. The reasoning offered for it is that licorice compounds may support the protective mucus lining of the digestive tract. The "deglycyrrhizinated" part matters for safety: ordinary licorice contains glycyrrhizin, which in quantity can raise blood pressure and deplete potassium, and DGL has that compound removed.
Here too, honesty is the whole point. The direct evidence for DGL in reflux specifically is thin. Most of the better licorice-extract trials sit in functional dyspepsia rather than reflux; a randomised study by Raveendra and colleagues, for instance, found a standardised licorice extract eased functional dyspepsia symptoms, which is a related but different problem [3]. Removing glycyrrhizin makes DGL safer than raw licorice, but safer is not the same as effective, and the reflux evidence does not let anyone promise results. Treat it as low-evidence and optional.
A lot of reflux marketing treats the problem as too much acid, and encourages you to neutralise or suppress it. That framing is incomplete. The burn happens because acid is in the wrong place, not because there is necessarily too much of it. Plenty of people with troublesome reflux produce perfectly normal amounts of stomach acid; what has gone wrong is containment. This matters for self-care because it explains why the durable wins come from keeping the valve closed and the stomach emptying, rather than from chasing acid alone.
It also explains a few common frustrations. Antacids feel like they should fix reflux, yet the relief is brief, because neutralising the acid that has already refluxed does nothing to stop the next episode. Cutting out acidic foods sometimes helps a little and sometimes does nothing, because the trigger was the size and timing of the meal, not its pH. And the herbs that people hope will "reduce acid" are mostly acting, if at all, on comfort and motility rather than on the underlying mechanics. Once you hold the mechanical picture in mind, the priority list stops feeling arbitrary and starts making sense.
There is a second reason to keep the mechanics central. Long-term, uncontrolled reflux can irritate and change the lining of the lower oesophagus, which is one of the reasons frequent symptoms deserve medical review rather than indefinite self-management. Reducing how often reflux happens is therefore not only about comfort tonight; it is the sensible, preventive goal.
If you keep a short symptom diary, two patterns tend to emerge more often than any single villain food. The first is portion size: large meals distend the stomach and make the valve more likely to give way, so the same food that is fine in a modest portion causes trouble in a big one. The second is timing relative to lying down, whether that is a late dinner before bed or an afternoon meal before a sofa slump. Eating a little less at a sitting, and leaving a proper gap before reclining, often does more than any elimination list.
When you do test foods, change one thing at a time and give it several days, because reflux is variable from day to day and a single good or bad evening proves little. Alcohol and coffee are worth testing honestly rather than assuming, since sensitivity varies widely. The aim is a short, personal list of genuine triggers, not a joyless diet built on other people's.
A sensible order of operations for occasional reflux looks like this:
Start with the mechanics that are proven to matter: address abdominal weight if it is relevant to you, stop eating within about three hours of bed, raise the head of the bed for night-time symptoms, and if you smoke, stopping helps here as everywhere.
Use a short symptom diary to find your personal food and drink triggers rather than banning long lists on principle.
Keep antacids for occasional, short-term relief, understanding that they neutralise acid that is already there rather than preventing reflux from happening.
Treat ginger and DGL as optional comfort measures, tried with modest expectations, not as the centrepiece of a plan.
And when you talk to a pharmacist or doctor, the productive questions are whether your symptoms are frequent enough to warrant assessment and whether anything you are experiencing counts as a red flag. This is one area where do-it-yourself has clear limits.
A word on chewing gum, which comes up often and is more interesting than it sounds. Chewing sugar-free gum after a meal increases saliva, which is mildly alkaline and helps clear and neutralise acid in the oesophagus, and the swallowing it prompts helps sweep contents back down. It is a small, low-risk comfort measure with a plausible mechanism, and it costs almost nothing to try. It will not fix reflux driven by weight or late meals, but as a minor add-on after eating it is a reasonable habit. Loosening a tight waistband has the same low-cost, mechanically sensible logic: anything that reduces pressure on the stomach works with the grain of the problem rather than against it.
The overall shape of a good plan is therefore preventive first and reactive second. Spend your effort on the changes that reduce how often reflux happens, keep a couple of comfort measures for when it does, and reserve the herbs for the optional margins where they belong.
Pregnant, breastfeeding, or on medication? Check with a healthcare professional first. Reflux is common in pregnancy, but medication choices differ then, and licorice in particular needs care. If you take blood-pressure or heart medication, or diuretics, be cautious with any licorice product and choose the DGL form.
Some symptoms are not simple heartburn and must not be self-managed. Seek medical assessment for difficulty or pain when swallowing, a sense of food sticking, unintentional weight loss, vomiting blood, black or tarry stools, iron-deficiency anaemia, or reflux that keeps returning despite sensible changes, because persistent reflux can be linked to changes in the oesophagus that need proper evaluation. And a crucial one: chest discomfort is not always digestive. If chest pain could be your heart, particularly with breathlessness, sweating, or pain spreading to the arm, neck or jaw, treat it as an emergency and seek help immediately rather than reaching for an antacid.
Reflux responds best to the least exciting interventions. The evidence points firmly at weight, meal timing, night-time posture and not smoking, in that unglamorous order, and only faintly at the herbs people hope will do the work instead. Ginger and DGL are optional comfort measures with limited evidence, worth a try if you like them and worth no great expectations if you do not. The single most valuable habit is knowing the difference between ordinary heartburn and the symptoms that deserve a doctor, because that boundary is where self-care ends and proper care begins. If you want to read further on any single option with the same honest grading, the PlantRx Remedy Library is built the same way.
1. Ness-Jensen E, et al. Lifestyle intervention in gastroesophageal reflux disease. Clinical Gastroenterology and Hepatology. 2016. 2. Jacobson BC, et al. Body-mass index and symptoms of gastroesophageal reflux in women. New England Journal of Medicine. 2006. 3. Raveendra KR, et al. An extract of Glycyrrhiza glabra (GutGard) alleviates symptoms of functional dyspepsia: a randomised, double-blind, placebo-controlled study. Evidence-Based Complementary and Alternative Medicine. 2012.
For an occasional episode, staying upright rather than lying down, loosening tight clothing, and sipping water can help clear acid from the oesophagus. These are comfort measures. For preventing reflux, the durable changes are weight management if relevant, not eating within about three hours of lying down, and raising the head of the bed.
The honest answer is that evidence is limited. Ginger has plausible mechanisms, it can speed stomach emptying and settle nausea, which could in theory reduce reflux, but direct trials in reflux are sparse. Some people find it soothing; large amounts can occasionally worsen heartburn. Treat it as an optional comfort measure, not a proven fix.
Deglycyrrhizinated licorice (DGL) is widely sold for heartburn, but the direct trial evidence in reflux specifically is thin. The DGL form removes glycyrrhizin, the compound that can raise blood pressure and lower potassium, which makes it safer than ordinary licorice, but safer is not the same as proven effective.
Common triggers include large or fatty meals, alcohol, coffee, chocolate, spicy foods and, for some people, tomatoes or citrus. Triggers are individual, so a short food-and-symptom diary is more useful than a blanket ban list. Meal size and timing often matter more than any single food.
Seek medical care for difficulty or pain on swallowing, food sticking, unintentional weight loss, vomiting blood or black stools, anaemia, or reflux that keeps returning despite sensible changes. And chest discomfort is not always reflux: if it could be your heart, especially with breathlessness, sweating or arm or jaw pain, treat it as an emergency.
Yes, if reflux troubles you at night. Raising the head of the bed by around 15 to 20cm, using blocks under the bedposts or a wedge rather than extra pillows, uses gravity to keep acid down. It is one of the better-evidenced lifestyle measures for night-time symptoms.
Look beyond food to the mechanics: meal size and timing, weight around the middle, night-time posture, alcohol and smoking often drive reflux more than specific foods. If sensible changes over several weeks do not help, or symptoms are frequent, that is a reason to see a doctor rather than to keep experimenting.
No. Antacids neutralise acid already present for short-term relief. Lifestyle changes reduce how often reflux happens in the first place. Herbs like ginger act on gut motility and comfort rather than acid directly. They address different parts of the problem, which is why the durable wins come from prevention, not just neutralising.
Possibly. Persistent reflux can be associated with changes in the oesophagus that a doctor should assess, and chest symptoms can occasionally be cardiac. Any alarm feature, trouble swallowing, weight loss, bleeding, or chest pain that could be your heart, means stop self-managing and seek care.