Answer:

It's quite possible that one or more supplements are making your reflux worse. Acid reflux, also known as gastroesophageal reflux disease (GERD), refers to the backup of stomach acid into the esophagus and up toward the throat, causing symptoms of heartburn (acid in the esophagus), regurgitation, and indigestion.

Some supplements may worsen these symptoms, while other supplements may help lessen these symptoms.

Supplements that may worsen acid reflux symptoms
High doses of vitamin B-6 can irritate the stomach or cause heartburn in some people.

Cocoa may cause heartburn and gastritis in some people due to its caffeine and theobromine content.

Arginine can potentially make the stomach contents more acidic and also cause heartburn. (Be aware that arginine may be sold as a single ingredient supplement, or as an ingredient in a sexual enhancement supplement.)

If taken with heartburn medication such as omeprazole (Prilosec), St. John's wort can worsen reflux symptoms.

Alpha-lipoic acid, being an acid, can also contribute to acid reflux.

Vitamin C may cause an "acid stomach" in some people, but fortunately, there is a special form of vitamin C that may reduce this effect.

Iron (and, occasionally, zinc) can cause stomach distress. If you need supplemental iron, consider taking it separately. There are several forms of iron that are more gentle on the stomach; these may be a good option for people who experience stomach upset even when taking iron with food.

Be aware that multivitamins often contain iron. Citrus bioflavonoids, another common ingredient in multis, can cause nausea or vomiting in a small percentage of women, especially those taking oral contraceptives or hormonal replacement therapy. See the Avoiding Nausea section of the Multivitamin and Multimineral Review for tips for reducing stomach upset.

CoQ10 can occasionally cause heartburn and nausea. However, this can be minimized by dividing your dose and taking over the course of the day — just be sure not to take it too late in the evening.

Despite being promoted for improving digestion or decreasing bloating, consuming apple cider vinegar does not seem to reduce heartburn in people with GERD-like symptoms. In fact, some people reported that apple cider vinegar worsened heartburn symptoms.

Common side effects of both L-tryptophan and 5-hydroxytryptophan (5-HTP) include heartburn, nausea and stomachache, which may theoretically worsen acid reflux symptoms.

When available, you may want to try alternatives to hard tablet supplements (which can sit along the stomach wall): Chewable or liquid forms, as well as getting a supplement ingredient in the form of a fortified food, may help reduce stomach irritation.

Supplements that may reduce acid reflux symptoms
Certain forms of magnesium are effective as antacids.

Alginate (from algae) has been used by itself or with antacids to treat reflux. It is believed to form a mechanical barrier that protects part of the stomach wall and has been clinically shown be as effective as antacids in treating GERD symptoms (Leiman, Dis Esophagus 2017). (ConsumerLab will be testing and reviewing alginate supplements in 2021).

Melatonin has been shown to reduce pain and other symptoms of GERD in preliminary research. Be aware, however, that any treatment of GERD would likely be long-term, and melatonin has not been adequately studied for long-term use.

Ginger is sometimes promoted for indigestion. There is some preliminary evidence that it may help to inhibit stomach acid production and increase the rate of gastric emptying (which could contribute to an anti-nausea effect). However, in clinical studies, some people have reported stomach upset and heartburn when taking ginger supplements. (Note: The amounts of ginger in ginger ales and supplements ranges from nearly none to large amounts — see the Ginger Review for ConsumerLab.com's findings.)

DGL (de-glycyrrhizinated licorice) taken before meals or bedtime may help coat the esophagus and stomach and reduce symptoms of reflux, as suggested by an observational clinical study (although the study had no placebo-control). In the study, 12 grams of a formula that provided 400 mg of DGL along with 2,000 mg of slippery elm and 2.6 mg of peppermint oil was dissolved in 100 to 250 mL of water and taken up to three times daily (Raveendra, Evid Based Complement Alternat Med 2012). (Be aware of risks with regular licorice).

D-limonene, at moderate dosage, has been shown to improve symptoms of heartburn and GERD. Too much can cause nausea and diarrhea.

Betaine hydrochloride is a chemical that has been proposed to help treat indigestion by increasing the amount of acid in the stomach (to help break down foods). However, there is little evidence for this use. In fact, although still sold as a dietary supplement, the FDA has stated there was a "lack of adequate data to establish the effectiveness" of betaine hydrochloride for use as a "stomach acidifier" (FDA 2015).

Digestive enzymes, which break down specific parts of food (such as fats or carbohydrates), have been found to reduce digestive discomfort in some, but not all studies.

Numerous herbs, such as parsley, peppermint, chamomile, fennel, caraway and blessed thistle have been proposed for indigestion and/or heartburn.

Before you use supplements to reduce acid reflux symptoms, it is important to rule out whether your symptoms may be the result of other factors such as OTC or prescription medications (e.g., pain relievers), lifestyle issues (such as too much alcohol) or other gastrointestinal conditions (such as ulcers).

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7 Comments

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Kay8208
December 22, 2015

I am 71 years old. In my 40's I started suffering from acid reflux. I started taking a multi-enzyme and have not suffered for 30 years. Except, I must add, when I failed to take them. As enzymes recycle until used up I would think the reflux was over. After finally figuring it out, DUH, I do not fail to take them now.
Hope this works for you.
Chewable papaya tablets can be a treat after eating if you find the good tasting ones.

Janice16905
June 20, 2018

Can you recommend a multi enzyme?

ConsumerLab.com
June 20, 2018

Hi Janice - Please see our top choices in the What CL Found section of our Digestive Enzymes Review: https://www.consumerlab.com/reviews/digestive-enzyme-supplements/digestive-enzymes/#topchoices

Lida21441
November 27, 2020

I for one have not experienced relief from reflux by taking the suggested digestive enzymes. I am really looking forward to reviews on alginate products because I have read that studies indicate they can be very effective for reflux issues.

Bonnie8200
December 20, 2015

The worst reflux from supplements I take is from Sam-e.

ConsumerLab.com
December 29, 2015

Hi Bonnie - Thank you for sharing your experience with SAMe; we've added information about this to the answer above.

Ann-Charlotte21404
November 23, 2020

Lotta
I am 52 years old, and have suffered a lot from acid reflux since 15 years, and was prescribed ppi for a few years, but the medicin stopped working, and the dose had to be increased, and finally my liver started to protest. I got very high blood pressure and systemic edema, and the blood tests showed that the liver was affected badly, a knewn side-effect of ppi. I stopped the medication, and after 6 weeks was the liver recovered and blood tests normal. I finally got surgery since I could not continue with medication, which was very successful, but, I still got problems with acid reflux, almost nearly as bad at times, despite following a strict diet (refraining from alcohol, coffee, fried foods, citrus, milk and other acidic or acidic causing food) and being very thin, ibm is 19. I then realized that I got the problems, as soon as my stomach got bloated.
I have IBS, and my surgeon suggested that my hernia to some degree was caused by the severe bloating I had had during years. I have now learned that the number one most important thing for me is to make sure my stomach is happy and not bloated. When bloated the pressure causes acid reflux. My bloated stomach was finally resolved by learning about FODMAPs in the food. Thanks to that, I can nowadays even eat acidic food at times without problems, as long as the stomach remains flat. I have tried every supplement or treatment on the list above, some have worked to some degree, but none as good as the insight into FODMAPs. If you have reflux, and you also have issues with bloated stomach, I would encourage you to try to find ways to get rid of the bloated stomach, it makes a world of difference, or has at least to me!
Good luck to all of you sufferers to find a way to feel well!

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