October 31, 2025

Reflux and Probiotics: Can Bacteria Help Relieve Heartburn?

Reflux and Probiotics: Can Bacteria Help Relieve Heartburn?

Gastroesophageal reflux, commonly known as heartburn, is a frequent condition in which acidic stomach contents flow back into the esophagus, causing a burning sensation and discomfort. While lifestyle changes and acid-reducing medications remain the main treatments, probiotics are increasingly discussed as a way to ease symptoms of this condition.

How do probiotics work?

Probiotics are live microorganisms that, when consumed in adequate amounts, support intestinal microflora and digestive health. Naturally present in the human gut, they help maintain balance between beneficial and harmful bacteria. When this balance is disturbed, it can affect the digestive system as a whole, including the symptoms of reflux.

What do studies show?

A 2020 analysis of 13 studies found that probiotics may reduce the frequency and severity of reflux symptoms such as burping, heartburn, nausea, or stomach pain. Another study from 2018 involving children with GERD (gastroesophageal reflux disease) showed that adding probiotics to proton pump inhibitor therapy significantly improved digestion. The most positive results were observed with Lactobacillus and Bifidobacterium strains, especially Lactobacillus reuteri. However, scientists note that further research is needed to confirm the effectiveness of specific strains.
Participants noticed improvement after different periods—ranging from 1 to 12 weeks—depending on the probiotic type, gut microbiota condition, and general digestive health.

Sources: Frontiers, PubMed

Probiotics and heartburn medications

Probiotics work differently than antacids. Antacids provide quick relief but do not address the root cause. Probiotics support microbial balance and may reduce symptoms from within, making them a good complement to conventional therapy.

Source: HealthLine

How to take probiotics

Probiotics can be taken as supplements or through fermented foods such as natural yogurt, kefir, sauerkraut, kimchi, miso, and tempeh. Always check labels—not every fermented product contains live bacterial cultures.

Lifestyle also matters

In addition to probiotics, simple lifestyle changes can help manage reflux: avoiding large meals, not lying down after eating, limiting fatty or spicy foods, coffee, alcohol, and smoking. Maintaining a healthy weight and sleeping with the upper body elevated can also help.

Reflux and probiotics

Probiotics are not a cure for reflux but can support natural digestive processes and help reduce symptoms. Their benefits are best documented for Lactobacillus and Bifidobacterium strains. Regular consumption of probiotic products may support both digestive and immune health.

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