Probiotic Guides Ireland

Evidence-Based Probiotics, Gut Health & Supplement Advice

Probiotic.ie publishes independent, evidence-led guides for Irish consumers on probiotics, gut health and high-quality food supplements.


Our guides are written to explain:

• Probiotic strains, CFU counts and storage

• Safe use with antibiotics and digestive conditions

• Berberine, magnesium, vitamin D3 and omega-3 supplementation

• Kids’ and family gut health considerations

• Product comparisons and safety checks referencing FSAI and recognised authorities


All articles are written for the Irish market and updated regularly.

Probiotic.ie publishes independent, evidence-led guides for Irish consumers on probiotics, gut health, and food supplements. Every guide cites named published research, references HSE and FSAI guidance where relevant, and is written specifically for the Irish market.

Probiotics, bowel support & microbiome — evidence-led

Probiotic Strains Explained: The Complete Guide for Ireland

By Darren Grant on Mar 04, 2026

Probiotic strain codes such as Lactobacillus acidophilus DSM 24735 and Bifidobacterium longum DSM 24736 identify the exact organism studied in clinical trials — generic names like "Lactobacillus acidophilus" on Irish supplement labels do not guarantee the same efficacy. This guide covers strain identification, CFU viability, storage requirements, and FSAI regulatory standards for probiotic supplements in Ireland.

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Intensive Bowel Support in Ireland: What It Means, Evidence, and How to Choose a High-Strength Probiotic

By Darren Grant on Feb 25, 2026

Intensive bowel support protocols use high-CFU multi-strain probiotics during active flares of IBD, IBS, and pouchitis, with the De Simone formulation studied at doses up to 3,600 billion CFU in peer-reviewed trials referenced in ECCO IBD guidelines. CDS22 is available in Ireland at 450 billion CFU per sachet and 112 billion CFU per capsule, making it the highest-potency De Simone formulation accessible to Irish patients.

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The De Simone Formulation in Ireland: Definition, Timeline, and How to Verify Product Identity.

By Darren Grant on Feb 23, 2026

The De Simone formulation comprises 8 specific strains including Lactobacillus acidophilus DSM 24735 and Bifidobacterium longum DSM 24736, developed by Professor Claudio De Simone and separated from VSL#3 via US and Italian court rulings in 2016. CDS22 is the current authorised product in Ireland containing this formulation, with the full legal timeline, strain certificates, and clinical trial index documented in this reference guide.

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CDS22 vs Optibac Every Day: Evidence-Based Probiotic Comparison (Ireland)

By Darren Grant on Dec 12, 2025

CDS22 sachets deliver 450 billion CFU across 8 clinically studied De Simone strains versus Optibac Every Day's 5 billion CFU single-strain formula, with CDS22 supported by over 80 peer-reviewed publications for IBS, ulcerative colitis, and pouchitis. This Ireland guide covers strain diversity, clinical trial evidence, cost per dose, and storage requirements for Irish consumers choosing between specialist and everyday probiotic formulations.

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Editorial Transparency

About the Author

Darren Grant is the Founder and Managing Director of Probiotic.ie, Ireland’s specialist retailer for clinically formulated probiotics and high-quality food supplements. He is the sole official distributor in Ireland and the UK of the original De Simone formulation, including CDS22-formula.


With over a decade of experience in supplement distribution, formulation analysis and regulatory compliance, Darren works directly with manufacturers and clinical experts to review probiotic strains (including L. rhamnosus GG and Saccharomyces boulardii), CFU counts, ingredient quality and safety standards before products are listed.


His guides reference recognised authorities such as Cochrane reviews, NHS guidance, the Food Safety Authority of Ireland (FSAI) and HPRA frameworks where relevant. Content is written to help Irish consumers understand strains, dosages (for example berberine 500 mg or vitamin D3 2000 IU), and safety considerations before purchasing.


All content is informational only and not medical advice.

Clinical Reference
Key Facts: The Original De Simone Formulation in Ireland
  • CDS22 contains 8 strains from the original De Simone formulation developed by Professor Claudio De Simone
  • The formulation has been studied in over 80 peer-reviewed publications for IBS, ulcerative colitis, and pouchitis
  • Referenced in ECCO IBD guidelines and American Gastroenterological Association (AGA) clinical guidance
  • The original formulation was previously marketed in Ireland as VSL#3 and Vivomixx
  • Following a 2016 US court ruling, the De Simone IP was separated from the VSL#3 brand
  • CDS22 is the only product in Ireland carrying the original 8-strain formula at 450 billion CFU per sachet
  • Probiotic supplements in Ireland are regulated as food supplements under FSAI guidelines
  • Available exclusively in Ireland from Probiotic.ie, with free DPD delivery on orders over €75
Start Here
Core Clinical Guides — Ireland
VSL#3 Alternative Ireland: The Original Formula is Now CDS22 →
The original De Simone formulation that was in VSL#3 before 2016 is now available in Ireland as CDS22-formula. Same 8 strains. Same potency. New name.
De Simone Formulation Ireland: Definition, Legal Timeline & Strain Verification →
8 specific strains separated from VSL#3 via US and Italian court rulings in 2016. CDS22 is the current authorised product in Ireland.
Probiotics for Ulcerative Colitis in Ireland: What the Evidence Says →
The De Simone formulation demonstrated statistically significant remission rates in UC in RCTs including Gionchetti 2000 and Mimura 2004, referenced in ECCO IBD guidelines.
Best Probiotic for UC, IBS & Pouchitis Ireland: Evidence-Based Guide →
The only probiotic referenced in ECCO IBD guidelines for ulcerative colitis and pouchitis, with remission data from Gionchetti 2000 and Mimura 2004.
Probiotics for Bloating Ireland: What the Evidence Actually Says →
Strain-specific probiotics reduce bloating severity scores in IBS patients, with the De Simone formulation studied across multiple RCTs referenced in ECCO IBD guidelines.