The home remedies for acid reflux with the most evidence are changes to how and when you eat and sleep: raising the head of your bed, sleeping on your left side, leaving about three hours between your last meal and bed, and losing extra weight. For quick relief, alginate products and calcium carbonate antacids beat placebo in trials. Apple cider vinegar and baking soda, two of the most shared remedies, have little evidence behind them, and baking soda can do real harm when it is overused.
Heartburn after a big meal or late at night is common, and much of it responds to simple changes. Below is how the remedies compare, the everyday changes that help most, the foods worth testing, the natural options with some evidence, the popular ones without it, the supplements that can make reflux worse, and the warning signs that mean it is time to see a doctor. Our Occasional Heartburn goal page ranks the products in our catalog by the same evidence.
Quick Answer: Home Remedies for Acid Reflux Compared by Evidence
This table sets out what the human studies found for each remedy, how quickly it works, and how strong the evidence is.
| Remedy | What the studies found | How fast it works | Strength of evidence |
|---|---|---|---|
| Alginate products (raft-forming liquids and tablets) | About 4 times the odds of symptom relief compared with placebo or antacids, across 14 trials of 2,095 people | Minutes | Strong |
| Calcium carbonate antacid | Less acid in the gullet and milder heartburn than placebo in small trials | 15 to 30 minutes | Moderate, short-lasting |
| Raising the head of the bed | Fewer symptoms in 4 of 5 small trials (228 people) | Weeks | Moderate, small trials |
| Sleeping on your left side | 44% helped with a sleep-position device versus 24% with a sham device, in 100 people | Weeks | Moderate |
| Three hours between dinner and bed | Going to bed within 3 hours of dinner was linked to far higher odds of frequent reflux | Not measured | Observational |
| Losing extra weight | The more weight lost, the more often symptoms went away, in a large population study | Months | Moderate |
| Melatonin | Fewer symptoms in a small trial of 36 people | 4 to 8 weeks | Early |
| Ginger | Helped indigestion in trials; not tested for reflux itself | 2 to 4 weeks | Early for reflux |
| Deglycyrrhizinated licorice (DGL) | No good human trials for heartburn | Unknown | Weak |
| Apple cider vinegar | No trials showing relief; no difference in reflux in a 12-week trial | Unknown | Weak |
| Baking soda | Neutralizes acid, but overuse sent people to hospital | Minutes | Risky |
Could your supplements be causing your heartburn? Check your stack in seconds.
Everyday Changes That Help Most: Bedtime, Bed Height and Weight
Raise the head of your bed. Lifting the head end of the bed lets gravity keep stomach contents down at night. A review of five trials with 228 people, using blocks under the bed legs or a wedge pillow, found that the four trials reporting symptoms all saw improvement, and in one, people were about twice as likely to feel better at six weeks (Albarqouni 2021). The trials were small, but the change is cheap and safe. They raised the bed itself or used a wedge, not extra pillows.
Sleep on your left side. In a double-blind trial of 100 adults with night-time reflux, a small device worn while asleep that discouraged lying on the right side helped 44% of people, against 24% with a sham device, and they spent more of the night on their left side (Schuitenmaker 2022). An earlier review found that both raising the bed and lying on the left side reduced the time acid spent in the gullet (Kaltenbach 2006).
Leave three hours between dinner and bed. In a Japanese study comparing people with frequent reflux to people without it, those who went to bed less than three hours after dinner had about 7 times the odds of frequent reflux compared with those who waited four hours or more (Fujiwara 2005). That kind of study can't prove cause, but an earlier dinner costs nothing to try.
Lose extra weight. In a Norwegian population study that followed people for about a decade, the more weight people lost, the more likely their reflux symptoms were to go away. Among those not relying on acid meds, a large drop in body mass index about doubled the odds of losing symptoms (Ness-Jensen 2013). Weight loss and raising the head of the bed are the two lifestyle changes with the clearest evidence (Kaltenbach 2006).
Foods and Drinks That Commonly Trigger Reflux
High-fat meals, chocolate, alcohol and smoking all lower the pressure of the valve at the top of the stomach in lab studies, which is why they appear on every list of reflux triggers. Coffee, citrus and spicy food are often added too. Yet the same review found no trials showing that cutting these foods out, or stopping smoking or drinking, improved reflux on its own (Kaltenbach 2006).
The practical answer is to find your own triggers rather than give up everything on the list. Keep a short diary of what you ate and when the heartburn came for two weeks, then cut the one or two foods that keep showing up. Smaller, lower-fat evening meals are a sensible start for most people. Our guide to improving gut health naturally covers the wider picture.
Natural Options With Some Evidence: Alginates, Calcium, Melatonin and Ginger
Alginates. Alginates come from brown seaweed. Taken after a meal, they form a gel raft that floats on top of the stomach contents and holds back the pocket of acid that collects there. Across 14 trials with 2,095 people, alginate products gave about four times the odds of symptom relief compared with placebo or plain antacids, and against acid-reducing meds they looked somewhat less effective, though that difference was not statistically clear (Leiman 2017).
Calcium carbonate. The chalky antacid in many chewables is one of the remedies our catalog grades for fast heartburn relief. In 26 adults with heartburn after meals, a single 420 mg dose lowered acid in the gullet and eased heartburn compared with placebo (Robinson 2001), and in 24 adults given a meal chosen to trigger heartburn, calcium carbonate tablets and gum worked within 15 to 30 minutes (Collings 2002). The relief is quick but short-lasting, which makes it a remedy for the occasional bad night, not for daily use.
Melatonin. The sleep hormone also acts in the gut. In a small trial of 36 people, melatonin taken for 4 to 8 weeks eased heartburn and upper-belly pain alone and alongside an acid-reducing med, though the med alone worked better than melatonin alone (Kandil 2010). Larger trials are still needed.
Ginger. Ginger is studied for indigestion and nausea rather than reflux. In 50 adults with indigestion, 400 mg of ginger extract a day for four weeks helped 79% against 21% on placebo, and fullness and upper-belly bloating cleared more often (Panda 2020). It may help if your heartburn comes with fullness after meals, but it hasn't been tested for reflux itself.
Deglycyrrhizinated licorice (DGL). DGL is licorice with most of its glycyrrhizin removed, and it is widely sold for heartburn. We found no good human trials of DGL for heartburn, so it sits with the weak-evidence remedies for now.
Get a personalized digestion protocol. See the products graded for occasional heartburn and build them into one daily protocol with everything else you take.
Popular Remedies With Weak Evidence: Apple Cider Vinegar and Baking Soda
Apple cider vinegar. Vinegar is one of the most shared reflux remedies online, but there are no trials showing it relieves heartburn. In a 12-week trial of 27 adults with high blood sugar who took vinegar daily, reflux, burping and bowel changes did not differ from the control group (Johnston 2008).
Baking soda. Sodium bicarbonate does neutralize stomach acid, which is why it works for a while. But the California Poison Control System recorded 192 cases of baking soda misuse in 12 years, 60% of them taken as an antacid; more than half needed medical care and 12 people were admitted to hospital with dangerous changes in their blood salts and acid balance (Al-Abri 2014). It is also high in sodium. If you use it at all, keep it to the dose on the box and never as a regular habit.
Supplements That Can Make Reflux Worse
Some heartburn comes from the pills themselves. Tablets that stick on the way down can irritate and even damage the gullet, and potassium and iron tablets are among the most common culprits. Taking pills at bedtime or without water is a common cause (Jaspersen 2000). Take tablets and capsules with a full glass of water, stay upright for a while afterwards, and check the timing advice in our guide to when to take your vitamins and supplements.
If heartburn started around the time you added something new, that supplement is the first suspect. The stack checker shows whether any of yours clash with each other or with your meds.
When Reflux Needs a Doctor: Warning Signs
Occasional heartburn is common and usually harmless, but some symptoms need a doctor's attention (Katz 2022):
trouble or pain when swallowing, or food that feels stuck;
losing weight without trying;
vomiting, especially vomiting blood, or black, tarry stools;
heartburn twice a week or more that keeps coming back despite the changes above.
Chest pain, especially with breathlessness, sweating or pain spreading to the arm or jaw, needs urgent care straight away, because it can come from the heart rather than the stomach.
Build a Digestion Protocol That Fits Your Stack
What eases your heartburn depends on when it comes, what you eat and what you already take. Rala, the AI behind Reverse Age Lab, checks every supplement you take against your meds and your goals, and builds one daily protocol with the right timing for each. Start your personalized digestion protocol.
Is this medical advice? No. This guide sets out the published research on home remedies for acid reflux; it is not a diagnosis, and Rala isn't a medical device or a clinician. Talk to your doctor about heartburn that keeps coming back, especially if you take meds.
Frequently Asked Questions
What is the fastest home remedy for acid reflux?
A calcium carbonate antacid or an alginate product. In trials, calcium carbonate eased heartburn within 15 to 30 minutes, and alginates gave about four times the odds of relief compared with placebo. Baking soda works fast too, but overuse can be dangerous.
Can supplements cause heartburn?
Yes. Tablets that stick in the gullet can irritate it, and potassium and iron tablets are among the most common causes. Take pills with a full glass of water and not right before lying down.
Does apple cider vinegar help acid reflux?
There is no good evidence that it does. No trials show it relieves heartburn, and in a 12-week trial of daily vinegar, reflux did not differ from the control group.
What is the best sleeping position for acid reflux?
On your left side, with the head of the bed raised on blocks or a wedge. In a trial of 100 adults, a device that kept people off their right side helped 44% against 24% with a sham device, and raising the head of the bed improved symptoms in small trials.
Sources
Leiman DA, Riff BP, Morgan S et al. Alginate therapy for reflux symptoms: a systematic review and meta-analysis. Diseases of the Esophagus, 2017. PubMed.
Robinson M, Rodriguez-Stanley S, Ciociola AA et al. Antacid and low-dose acid reducer in lowering acidity and relieving meal-induced heartburn. Alimentary Pharmacology and Therapeutics, 2001. PubMed.
Collings KL, Rodriguez-Stanley S, Proskin HM et al. Clinical effectiveness of a new antacid chewing gum on heartburn and oesophageal pH control. Alimentary Pharmacology and Therapeutics, 2002. PubMed.
Albarqouni L, Moynihan R, Clark J et al. Head of bed elevation to relieve reflux symptoms: a systematic review. BMC Family Practice, 2021. PubMed.
Schuitenmaker JM, Kuipers T, Oude Nijhuis RAB et al. Sleep positional therapy for night-time reflux: a double-blind, randomized, sham-controlled trial. Clinical Gastroenterology and Hepatology, 2022. PubMed.
Kaltenbach T, Crockett S, Gerson LB. Are lifestyle measures effective for reflux? An evidence-based approach. Archives of Internal Medicine, 2006. PubMed.
Fujiwara Y, Machida A, Watanabe Y et al. Association between dinner-to-bed time and frequent reflux. American Journal of Gastroenterology, 2005. PubMed.
Ness-Jensen E, Lindam A, Lagergren J et al. Weight loss and reduction in reflux: a prospective population-based cohort study (the HUNT study). American Journal of Gastroenterology, 2013. PubMed.
Kandil TS, Mousa AA, El-Gendy AA et al. The potential therapeutic effect of melatonin on reflux. BMC Gastroenterology, 2010. PubMed.
Panda SK, Nirvanashetty S, Parachur VA et al. A randomized, double-blind, placebo-controlled study of a ginger extract (OLNP-06) in adults with indigestion, 2020. PubMed.
Johnston CS, White AM, Kent SM. A preliminary evaluation of the safety and tolerance of vinegar taken daily by adults with high blood sugar. Journal of Medicinal Food, 2008. PubMed.
Al-Abri SA, Kearney T. Baking soda misuse as a home remedy: case experience of the California Poison Control System. Journal of Clinical Pharmacy and Therapeutics, 2014. PubMed.
Jaspersen D. Pill-induced injury of the gullet: causes, incidence, prevention and management. Drug Safety, 2000. PubMed.
Katz PO, Dunbar KB, Schnoll-Sussman FH et al. American College of Gastroenterology clinical guideline for the evaluation and management of reflux. American Journal of Gastroenterology, 2022. PubMed.
