BioGaia Gastrus
BioGaia Gastrus
BioGaia Gastrus
BioGaia Gastrus
BioGaia Gastrus
BioGaia Gastrus

BioGaia Gastrus

30 extra strength gut health probiotics

Based on more than 30 years of our own research, BioGaia Gastrus is a specialised, extra-strength probiotic supplement. Each chewable Gastrus tablet contains two patented L. reuteri strains that work synergistically offering evidenced-based gut health probiotic support.

Why choose this probiotic?

✓ Specialised extra-strength digestive support

✓ Live bacterial cultures designed to target the digestive system

✓ Contains one of the world's most researched probiotic strain*

✓ Suitable alongside antibiotics

✓ High-strength, dual active probiotic with Lactobacillus reuteri

✓ Suitable alongside medications for IBS

Quantity: How many products do you want to receive per delivery?

Explore our other probiotics for adults

BioGaia Prodentis

BioGaia Prodentis

£24.99

 
BioGaia Protectis D+

BioGaia Protectis D+

30 tablets

£17.49

 

Money-back guarantee

Not happy? You can request a full refund within 30 days

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We ship everywhere in the UK free of charge

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Bulking agent (isomalt), L. reuteri DSM 17938 and L. reuteri ATCC PTA 6475, flavour enhancer (ascorbic acid), mandarin flavouring and mint flavouring.

Enjoy the recommended dose at any time of day, with or without food.

Storage: Store in a dry place, not above room temperature (max 25°C). Products should be stored safely out of reach of young children.

Recommended daily dose: 1-2 tablets. L. reuteri DSM 17938 and L. reuteri ATCC PTA 6475, each tablet contains a minimum of 200 million live L. reuteri.

Recommended daily dose should not be exceeded. Food supplements should not be used as a substitute for a varied diet.

Not sure which is the best probiotic for your need?

Scientifically proven gut health probiotics

A high-quality probiotic supplement, BioGaia Gastrus helps reduce the growth of less beneficial bacteria for a more balanced gut. BioGaia Gastrus contains a complementary combination of patented lactic acid bacterium strains L. reuteri ATCC PTA 6475 and L. reuteri DSM 17938.

L. reuteri probiotic strains are among the most researched in the world, with over 250 published studies involving more than 22,000 people.

L. reuteri reaches the gut alive

Probiotics originating from humans, like L. reuteri, possess a unique advantage as they have biologically evolved within us, potentially fostering a more symbiotic relationship with our gut microbiota.

Live bacteria must survive the journey through the acidic environment of the stomach to reach the gut alive. Our clinical studies show that BioGaia’s strains of L. reuteri, are proven to survive and reach the gut alive.

Advanced probiotic support developed in Sweden

Our 35-year commitment to conducting rigorous clinical research ensures that our products are backed by solid evidence and trusted around the world.

FAQ

Limosilactobacillus reuteri (formerly known as Lactobacillus reuteri) Gastrus is a combination of two probiotic strains, L. reuteri DSM 17938 and L. reuteri ATCC PTA 6475.

Yes, they are safe for long-term, daily use.

  • Protectis contains L. reuteri DSM 17938
  • Gastrus contains L. reuteri DSM 17938 and L. reuteri ATCC PTA 6475

Yes. One tablet contains a minimum of 200 million live L. reuteri Gastrus, and two tablets contain a minimum of 400 million live L. reuteri Gastrus.

BioGaia Gastrus contains the patented lactic acid bacterium strains L. reuteri ATCC PTA 6475 and L. reuteri DSM 17938.

In probiotics, "clinically proven" means that the probiotic strain has been tested in human clinical trials under controlled conditions. These studies are typically peer-reviewed and published in scientific journals, ensuring the results are credible and based on evidence rather than anecdotal claims. For a probiotic to be "clinically proven," it should show consistent, statistically significant results.

All FAQ

Probiotics powered by science

At BioGaia, our evidence-based probiotics are backed by over 35 years of world-leading microbiome research, making them a trusted choice among healthcare professionals and consumers around the world.

Our patented strain, L. reuteri, stands out with its high bioavailability and is one of the few probiotics clinically proven to reach your gut alive.

Our science

Explore more of our probiotic food supplements

  BioGaia Gastrus BioGaia Protectis D+ BioGaia Prodentis
  Gastrus Protectis D+ Prodentis
Ratings
Format 30 chewable tablets 30 or 90 chewable tablets 30 chewable tablets
Recommended age Suitable from 3 years of age Suitable from 12 years of age Suitable from 3 years of age
Benefits Advanced, specialised formulations to target gut & digestive health Comprehensive daily digestive & immune support for occasional stomach upsets & preventative care Supports oral health
Dosage 1-2 tablets daily 1 tablet daily 1-2 tablets daily
 

£26.99

£17.49

£24.99

* According to Pubmed. April 2024.
**Limosilactobacillus reuteri (formerly known as Lactobacillus reuteri)