Research suggests that probiotics may help ease symptoms of acid reflux — and some side effects of acid reflux medications.
While the evidence is promising, further large, placebo-controlled trials are necessary to confirm these effects.
Probiotics are living bacteria or yeasts that may benefit health, particularly digestive health. This article investigates how probiotics may benefit people with acid reflux and notes which bacterial strains may be best.
It also looks at important considerations when choosing probiotics and explores the risks. Finally, this article lists some alternative acid reflux treatments.
Acid reflux involves stomach acid leaking upward, into the esophagus. Depending on how frequent it is, this may be uncomfortable, painful, or even debilitating.
Emerging research suggests that probiotics may be a viable complementary treatment, whether a person has occasional bouts of acid reflux or more prolonged gastroesophageal reflux disease (GERD).
There is also evidence that probiotics may ease side effects of medications that help manage the condition.
A 2020 systematic review investigated the effects of probiotics on GERD. The authors looked at 13 studies of varying quality, 11 of which found that probiotics had some benefit for acid reflux. The specific benefits are below:
While these findings are promising, the review did not include more rigorous, placebo-controlled trials, which will be necessary to confirm the effects of probiotics.
Another potential benefit of probiotics is that they may ease some side effects of
Taking PPIs can cause small intestine bacterial overgrowth (SIBO). Symptoms of SIBO include:
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At 12 weeks, the researchers assessed the participants with cured esophagitis. The group that had received the probiotic had lower rates of SIBO and decreased diarrhea.
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At the end of the trial, the children who took probiotics had lower rates of SIBO, compared with those who took a placebo. These lower rates were similar to those of children without GERD.
Most studies of probiotics for GERD have investigated
The American Gastroenterological Association offers the following advice about choosing probiotic supplements:
Antacids are medications that neutralize stomach acid and alleviate acid reflux and heartburn. It is safe to take probiotics and antacids together, though each can interact with other medications. For this reason, a person should speak with a doctor before taking any kind of supplement.
Probiotics may increase the effectiveness of antacids and may even be a viable replacement.
A large 2021 study investigated different approaches for people with indigestion and acid reflux. Each participant received one of the following treatments:
All groups experienced improvements in their indigestion symptoms. However, the group that received the probiotics alone had the greatest improvements.
Most people can safely take probiotics. However, as with other medications and supplements, there is always a risk of side effects. And people who are unwell or have weakened immune systems
Some risks of taking probiotics include:
In addition, research into the effects of probiotics on SIBO has had mixed results. Some studies show a benefit, while others have found that probiotics may make SIBO worse.
It is important to use probiotics as a complementary treatment, not a substitute for standard treatment.
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Acid reflux involves stomach acid traveling upward into the esophagus.
Probiotics cannot cure it, but they may help ease some symptoms and reduce side effects of prescription treatments called PPIs. Confirming these benefits requires more research.
People can safely take probiotics and antacids together, but either approach can interact with other medications. Also, probiotics can cause side effects. Always speak with a doctor before taking a new supplement or medication.
Last medically reviewed on December 21, 2021
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