Natural remedies for acid reflux: what actually works

Search “natural remedies for acid reflux” and you get the same numbered list every time, usually with no citations and always with the same dozen items in a different order. Some of those items have real trials behind them. Several have none. Two are actively counterproductive, and one of those, apple cider vinegar, is recommended by more pages than any other remedy on the list.

So I read the trials and graded each remedy by what the evidence actually supports, not by how often it gets repeated. One disclosure before we start: Evexia’s owner also owns Greco Gum, a mastic gum brand, and a mastic chew appears in the “worth a try” tier below, graded on the same scale as everything else.

First, is it heartburn, acid reflux, or GERD?

These get used interchangeably and they aren’t the same thing.

Heartburn is the symptom: the burning behind your breastbone, sometimes with a sour taste. Acid reflux is the event: stomach contents travelling back up into the esophagus because the valve at the top of the stomach relaxes when it shouldn’t. GERD is the diagnosis, applied when that reflux is frequent enough or damaging enough to be a disease rather than an occasional nuisance.

The practical line is roughly twice a week. Reflux after a heavy dinner is ordinary human physiology. Reflux twice a week or more, for weeks, is worth a clinician’s attention, because the management is different and because a few conditions that feel like reflux aren’t.

How I graded these

Every remedy here gets one of five grades, based on the quality of the human trials rather than whether the mechanism sounds convincing. A plausible mechanism with no trials is not evidence, and plenty of items on the standard reflux listicle are exactly that.

• Strong — supported by guidelines or consistent controlled trials.
• Moderate — supported by controlled trials, but small, few, or mixed.
• Weak — early or surrogate evidence only, but low-risk enough to try.
• No evidence — widely recommended, not supported by trials.
• Avoid — no support, and a plausible route to making things worse.

The 2022 American College of Gastroenterology guideline is the spine for the lifestyle grades.^[1] Where I depart from it, I say so.

The remedies with the best evidence

Lose weight, if you’re carrying extra. This is the least fun item on the list and the one with the best support. It’s the lifestyle measure the ACG guideline backs most firmly,^[1] and a systematic review found weight loss reduced the time the esophagus spent exposed to acid in controlled trials, with symptom improvement in observational data on top.^[2] The mechanism is mechanical: abdominal weight raises pressure on the stomach and pushes contents upward. If your BMI has drifted up and your reflux arrived with it, this is the intervention most likely to actually fix the problem rather than mask it. Grade: strong.

Raise the head of your bed, and stop eating earlier. For nighttime symptoms, elevating the head of the bed by six to eight inches is the best-supported measure.^[1] Do it with blocks under the bed legs or a wedge under the mattress. Stacking pillows does not work and can worsen things, because it bends you at the waist and increases abdominal pressure instead of tilting your whole torso. Pair it with roughly three hours between your last meal and lying down. Both measures target the same window, the hours when gravity stops helping you. Grade: strong.

Alginates. The most underrated item here. Alginates come from seaweed and work differently from ordinary antacids: on contact with stomach acid they form a physical gel raft that floats on the stomach contents and blocks reflux mechanically rather than neutralizing acid. A systematic review and meta-analysis of 14 randomized trials covering 2,095 people found alginate-based therapies significantly more effective than placebo or plain antacids for resolving GERD symptoms, and not significantly worse than PPIs or H2 blockers in head-to-head comparison.^[3] For mild or intermittent symptoms where you’d rather not be on daily acid suppression, this is the best-evidenced thing you can buy without a prescription. Grade: strong.

Worth a try, on weaker evidence

Sugar-free gum after meals. Cheap, low-risk, and better studied than most people realize. In a controlled study, people with reflux symptoms ate a deliberately reflux-provoking meal twice; on one occasion they chewed sugar-free gum for half an hour afterward. Chewing cut the proportion of the postprandial period the esophagus spent below pH 4 from a median of 5.7% to 3.6%.^[4] The mechanism is not the gum. It’s saliva, which is alkaline and buffers acid, plus a higher swallowing rate that physically clears the esophagus faster. Any sugar-free gum delivers it. Avoid mint flavors, which can relax the valve at the top of the stomach, and skip this if you’re prone to swallowing air or have jaw problems. Grade: moderate for the mechanism, weak for lasting benefit.

Where mastic gum fits, honestly. Mastic is the hardened resin of the Chios mastic tree, and it’s a firm sugar-free chew, so it delivers the saliva-and-swallowing mechanism above like any other gum. It also has a trial of its own, and this is the point almost every consumer page gets wrong: the placebo-controlled trial found mastic improved functional dyspepsia, not GERD.^[5] Dyspepsia is upper-abdominal discomfort, fullness and burning; heartburn appears as one symptom among several, and the two conditions overlap but aren’t the same diagnosis. So mastic has a real human trial behind it for a neighbouring problem, and no GERD trial at all. That makes it a reasonable thing to chew after meals if you like the chew, and not a reflux treatment. If you want the longer version, we cover the broader evidence in mastic gum benefits, and Greco has a deeper dive on mastic and reflux specifically. Grade: weak, and for dyspepsia rather than reflux. Greco Gum shares our owner (Hubert Ventures LLC).

Your own trigger foods, identified selectively. The standard advice is to eliminate coffee, chocolate, citrus, tomato, alcohol and anything spicy. The ACG guideline does not endorse that blanket approach; it supports targeted avoidance of foods that reliably trigger your symptoms rather than wholesale elimination.^[1] This matters, because a blanket ban is miserable, hard to sustain, and mostly unnecessary. Keep a two-week note of what you ate and when symptoms hit, cut the two or three items that actually correlate, and keep the rest. Grade: moderate, for the personalized version only.

Melatonin. More interesting than it sounds. A small controlled study found melatonin improved reflux symptoms, alone and alongside omeprazole.^[6] It’s a small trial and it hasn’t been convincingly replicated at scale, so this sits well below the measures above. But it’s cheap, the safety profile is good, and the nighttime timing fits the problem. Grade: weak.

Inner-leaf aloe. A pilot randomized trial compared aloe vera syrup against omeprazole and ranitidine over four weeks and found it reduced the frequency of all eight GERD symptoms assessed, without adverse events requiring withdrawal.^[7] One pilot trial is one pilot trial. Use inner-leaf preparations specifically: whole-leaf aloe contains anthraquinones that act as a laxative and are not what you want here. Grade: weak.

Probiotics. A systematic review of 13 prospective studies found 11 of 14 comparisons reported some benefit for reflux symptoms, but the underlying study quality was uneven, with six rated low quality.^[8] Strains and doses varied so widely that no specific recommendation is possible yet. Reasonable to try, impossible to be precise about. Grade: weak.

Works, but use it sparingly

Baking soda. Half a teaspoon in water neutralizes stomach acid quickly, and for an occasional episode that’s fine. The problem is the sodium load, which matters if you have high blood pressure, heart failure or kidney disease, and the fact that it’s a rapid neutralizer with no barrier effect, so relief is short. As an occasional rescue it works. As a daily habit it’s the wrong tool, and an alginate does the same job better with none of the sodium. Grade: works acutely, not for regular use.

Popular, but not supported

Apple cider vinegar. The most-recommended remedy on this SERP and the one I’d steer you away from. No controlled trial supports it for reflux. The usual rationale, that reflux is caused by too little stomach acid, isn’t how GERD works in most people; the problem is generally the valve, not acid volume. And vinegar is acidic, so pouring it onto an inflamed esophagus is a plausible route to feeling worse. Grade: avoid.

Milk. It buffers acid for a few minutes, which is why it feels like it works, and then the fat and protein load slows stomach emptying and leaves you no better off. No trial supports milk as a reflux remedy despite how routinely it appears on these lists. If you want a few minutes of relief, an antacid does it without the rebound. Grade: avoid as a strategy; harmless as an occasional sip.

Ginger. Genuinely good for nausea, and frequently recommended here on that reputation. For reflux specifically there’s no supporting trial, and in larger amounts ginger can relax the lower esophageal sphincter and make reflux worse. Grade: no evidence.

Chamomile, slippery elm, marshmallow root. Soothing, traditional, and essentially unstudied for reflux. They’re low-risk, so I won’t tell anyone to stop drinking chamomile tea. Just don’t count it as treatment. Grade: no evidence.

The whole list, graded

Reflux remedies ranked by the quality of their human evidence

Remedy	Grade	What it does	Caution
Weight loss (if overweight)	Strong	Lowers abdominal pressure on the stomach	Slow; the only one that addresses a cause
Head-of-bed elevation	Strong	Gravity keeps stomach contents down overnight	Use blocks or a wedge, never extra pillows
Alginates	Strong	Forms a physical raft that blocks reflux	Short-acting; take after meals
3-hour dinner-to-bed gap	Strong	Empties the stomach before you lie flat	Hard with late schedules
Sugar-free gum after meals	Moderate	Saliva plus swallowing clears acid faster	Avoid mint; not if you swallow air
Personalized trigger foods	Moderate	Removes your actual triggers	Blanket elimination is not supported
Melatonin	Weak	Small trial showed symptom improvement	One small study; not replicated at scale
Inner-leaf aloe	Weak	One pilot trial reduced symptom frequency	Inner-leaf only; whole-leaf is a laxative
Mastic gum	Weak	Trial evidence is for dyspepsia, not GERD	Not a reflux treatment
Probiotics	Weak	Mixed benefit across uneven studies	No strain or dose recommendation possible
Baking soda	Acute only	Neutralizes acid fast	Sodium load; not for regular use
Apple cider vinegar	Avoid	Nothing; premise is wrong for most people	Acidic, can worsen symptoms
Milk	Avoid	Brief buffering, then no benefit	Fat and protein slow gastric emptying
Ginger	No evidence	Good for nausea, not studied for reflux	Can relax the valve in larger amounts

When natural isn’t enough

If you’re doing the strong-evidence measures properly and still burning twice a week or more, the honest answer is that this list has run out and medicine hasn’t. PPIs are genuinely effective for GERD, and treating them as something to be avoided at all costs is its own kind of misinformation.

The nuance worth knowing is about stopping them. In a randomized, placebo-controlled trial, healthy volunteers with no reflux history took a PPI for eight weeks; in the four weeks after stopping, 44% reported acid-related symptoms, against 15% of those who’d had placebo throughout.^[9] The drug can induce, on withdrawal, the symptoms it’s prescribed to treat. That is not a reason to refuse a PPI. It is a very good reason never to stop one abruptly, and to taper with your prescriber’s input, usually with an alginate covering the gap.

The measures at the top of this list work well alongside a PPI, and they’re often what lets a taper succeed. That’s the most useful way to think about everything here: adjuncts and first-line self-care for mild or intermittent symptoms, not replacements for treatment of a diagnosed disease.

If gut health is the broader thread you’re pulling, the mastic gum evidence covers the digestive research in more depth, and the oral microbiome starts one level up the same tract.