Health Ingredients
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Lactobacillus fermented non-GMO soy for relief of heartburn symptoms and support of digestive health.

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Our unique gut health ingredient, Gastro-AD®, is a fermented non-GMO soy product, clinically proven to relieve gastric upset and complications from excess stomach acid. It is a clinically studied food supplement produced from the fermentation of soy by Lactobacillus delbrueckii ssp. delbrueckii (Rosell-187). It has been studied in over 600 subjects and proven to be very well tolerated.

Gastro-AD® is suitable for vegan or vegetarian diets and it is gluten-free, dairy-free and non-GMO.


Gastro-AD® is a safe, natural and effective option to support stomach acid balance, and relieve gastric upset without side effects. It contains no synthetic ingredients. Download our product leaflet.

Gastro-AD® is:

  • A food supplement based on non-GMO soy fermented by Lactobacillus strain L. delbrueckii R-187 (Rosell-187).
  • A unique way to obtain health benefits from fermented soy.
  • Clinically proven to relieve and prevent heartburn symptoms as well as gastric upset, vomiting, and nausea.
  • Clinically proven to be safe and effective.
  • Backed by several published studies, in a total of 600 patients.
  • Free from side effects.
  • A natural option to replace synthetic OTC drugs.
  • Available as a powder, suitable for chewable tablets, orodispersible sachets and other delivery systems.

Gastro-AD® 2019 Clinical Study

To determine if Gastro-AD® relieves heartburn and improves gastrointestinal symptoms and quality of life (QOL), a randomized, double-blind parallel study was conducted with adults experiencing mild or moderate heartburn. Gastro-AD® and, unexpectedly, also the placebo equally improved heartburn severity and frequency during intervention. However, several QOL items improved with Gastro-AD® compared to placebo including ‘fear of eating’ and ‘inability to concentrate at work’. Additionally, frequency of heartburn, diarrhea, and bloating improved during washout vs. baseline for the Gastro-AD® group compared to placebo. Gastro-AD® supplementation improved QOL indicators and may decrease heartburn occurrence over time compared to the short-term effect. Download the published study.

Gastro-AD® Clinical Study Summary

A simplified summary of our 2019 clinical study. Download the study summary.

Gastro-AD® Technical Paper

Gastro-AD® is a natural fermented soy food supplement for safe and effective management of digestive discomfort and acid reflux. It is based on non-GMO soy fermented by Lactobacillus strain L. delbrueckii R-187 (Rosell-187). It has an excellent track record for management of symptoms of GERD without side effects. Gastro-AD® represents a natural, safe and proven alternative to over-the-counter (OTC) remedies with the extra nutritional benefits of fermented soy. Download our technical paper.