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.

These guides are educational and do not constitute medical advice. Food supplements are not medicines and are not intended to diagnose, treat, cure or prevent any disease. Probiotic.ie sells food supplements, including CDS22-formula, and is not a neutral party. If you have persistent or worsening symptoms, speak to your GP.

Probiotic & Gut Health
Comparison Guides
Magnesium Guides
Supplement Guides

Reference guides · Educational content only, not medical advice · Food supplements are not medicines · Updated regularly
VSL#3 is a registered trademark of VSL Pharmaceuticals Inc. and Actial S.r.l. Vivomixx is a registered trademark of Mendes SA. Probiotic.ie is not affiliated with, endorsed by or connected to those trademark holders. Any third-party trademarks referred to remain the property of their respective owners.

Best Probiotics in Ireland: How to Choose (2026 Guide)

By Darren Grant on Feb 11, 2026

This pharmacy-grade Ireland guide applies strain-specific evidence, CFU viability, storage requirements, and FSAI regulatory criteria to evaluate leading probiotic products including CDS22, Symprove, Optibac, and Alflorex. Antibiotic timing protocol covered: 2-hour separation rule, 7–14 days post-course continuation, with reference to HSE and FSAI guidance for Irish consumers.

Read more
Probiotics With Antibiotics in Ireland: Can You Take Them Together?

By Darren Grant on Feb 11, 2026

reland guide: Can you take probiotics with antibiotics? Yes — 2-hour gap rule recommended. Continue 7–14 days post-course. Antibiotic-associated diarrhoea risk 5–30%. Evidence reviewed for Lactobacillus rhamnosus GG and Saccharomyces boulardii with FSAI and HSE regulatory context for Irish consumers.

Read more
Berberine + Probiotics Ireland: Synergy for Gut, Blood Sugar and Weight

By Darren Grant on Jan 27, 2026

Berberine's AMPK activation mechanism modulates gut microbiome composition, with research suggesting concurrent probiotic use may attenuate berberine-induced disruption of beneficial Lactobacillus and Bifidobacterium populations. This Ireland guide covers the evidence for combining berberine at 500mg three times daily with multi-strain probiotics, timing protocols, and FSAI safety considerations for Irish consumers.

Read more
Berberine Ireland: Evidence, Benefits, Side Effects & Where to Buy (2026)

By Darren Grant on Jan 24, 2026

Berberine is an alkaloid compound with clinical evidence for blood glucose regulation, LDL reduction, and gut microbiome modulation, with Yin et al. (2008) documenting comparable effects to metformin at 500mg three times daily across 116 patients. This Ireland guide covers dosing protocols, side effects, drug interactions, FSAI regulatory status, and how to evaluate berberine supplement quality for Irish consumers.

Read more
Best Probiotic for UC, IBS & Pouchitis (Ireland Evidence-Based Guide)

By Darren Grant on Dec 12, 2025

The De Simone formulation is the only probiotic referenced in ECCO IBD guidelines for ulcerative colitis and pouchitis, with remission data from randomised controlled trials including Gionchetti 2000 and Mimura 2004. CDS22 is the only product available in Ireland containing the original 8-strain formula at 450 billion CFU, with condition-specific evidence reviewed for UC, IBS, and pouchitis in this guide.

Read more
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.

Read more
CDS22 vs Symprove: Evidence-Based Probiotic Comparison for Ireland

By Darren Grant on Dec 11, 2025

CDS22 delivers 450 billion CFU across 8 De Simone strains with clinical trial evidence for IBS, ulcerative colitis, and pouchitis; Symprove is a water-based liquid formula studied primarily in IBS-D at significantly lower CFU concentrations. This Ireland guide covers delivery mechanism, strain specificity, CFU potency, cold-chain storage requirements, and clinical evidence for Irish consumers choosing between the two formulations

Read more
Top 50 Gut Health Facts & FAQs (Ireland Edition)

By Darren Grant on May 28, 2025

Fifty evidence-referenced gut health facts covering microbiome diversity, probiotic strain specificity, IBS triggers, ulcerative colitis management, and the clinical history of the De Simone formulation in Ireland. Sourced from ECCO guidelines, Cochrane reviews, FSAI regulatory standards, and peer-reviewed gastroenterology trials, written for Irish consumers and healthcare professionals.

Read more
Berberine Ireland: The Science-Backed Supplement for Weight Loss and More

By Darren Grant on Apr 06, 2025

Berberine is an alkaloid compound with clinical evidence for blood glucose regulation, LDL cholesterol reduction, and gut microbiome modulation, studied in Irish-relevant trials comparing its effects to metformin at 500mg three times daily. This Ireland guide covers the AMPK activation mechanism, dosing protocols, side effects, drug interactions, and FSAI regulatory status for Irish consumers.

Read more
Top 20 Irish Probiotic Questions Answered – Your Gut Health FAQ

By Darren Grant on Mar 27, 2025

Twenty evidence-based answers covering probiotic strain selection, CFU requirements, refrigeration, antibiotic timing, IBS protocols, and the clinical history of the De Simone formulation for Irish consumers. Referenced against ECCO IBD guidelines, Cochrane reviews, FSAI regulatory standards, and HSE clinical pathways for Ireland

Read more
Professor Niall Moyna (DCU) on Inulin: What Ireland's Leading Exercise Physiologist Recommended

By Darren Grant on Aug 14, 2020

Professor Niall Moyna — Full Professor of Clinical Exercise Physiology at Dublin City University and RTÉ health contributor — recommended inulin prebiotic fibre on RTÉ Radio 1, citing its role in gut health and appetite regulation; his endorsement drove a significant increase in Irish consumer interest in inulin supplements. This page covers what inulin is, the prebiotic fibre evidence base, and where to buy inulin supplements in Ireland, including NOW Foods Organic Inulin Powder, available with nationwide tracked delivery from Probiotic.ie, regulated under FSAI food supplement guidelines.

Read more
Candida Diet: Foods to Eat (Ireland)

By Darren Grant on Feb 01, 2020

A candida-conscious diet emphasises non-starchy vegetables, quality proteins, healthy fats such as coconut oil (a natural source of caprylic acid), live yoghurt and herbal teas, while limiting refined sugar and refined carbohydrates, though direct clinical evidence that diet alone controls candida in humans is limited. This Ireland guide covers the foods commonly included on a candida diet and the rationale, the evidence and its limits, FSAI regulatory context, and how the diet links to the candida support supplements range from Probiotic.ie.

Read more

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.

Reference
Key Facts: CDS22-formula and the De Simone Formulation
  • CDS22-formula is an 8-strain live bacteria food supplement manufactured by EOS2021 S.r.l., at 450 billion CFU per sachet
  • The eight strains are identified on the current Irish label by their NCIMB deposit codes, NCIMB 30435 to NCIMB 30442
  • The formulation was developed by Professor Claudio De Simone and is referred to in the published literature as the De Simone Formulation
  • EOS2021 S.r.l. states that CDS22-formula contains the De Simone Formulation. This is a manufacturer statement, not an independent finding
  • ECCO stated in October 2023 that the De Simone Formulation was sold under the VSL#3 brand until 2016, and that after 2016 the product sold as VSL#3 no longer contains it. ECCO does not reference CDS22-formula and does not endorse any retail product
  • The AGA 2024 pouchitis guideline (Barnes et al., Gastroenterology 2024;166(1):59-85, PMID 38128971) names the De Simone Formulation as the probiotic used in the trials it reviewed. That recommendation is conditional and based on low-certainty evidence, and applies to secondary prevention of recurrent pouchitis only
  • The published literature on the formulation runs to over 200 publications and more than 80 clinical studies. No clinical trial has been conducted on CDS22-formula under that product name
  • Probiotic.ie is the sole exclusive distributor of CDS22-formula for Ireland and the United Kingdom, appointed under written agreement with EOS2021 S.r.l. Every pack sold here comes through us, including stock held by pharmacies. Probiotic.ie is not the sole retailer
  • Stock is held refrigerated at +2°C to +8°C at a temperature-controlled facility in Dublin and dispatched on a tracked service. Free tracked Irish delivery on orders over €75
  • CDS22-formula is a food supplement, not a medicine. It is not authorised by the HPRA and is not intended to diagnose, treat, cure or prevent any disease or health condition. No authorised EU or Irish health claim is made for it. Food supplements in Ireland are regulated by the FSAI; Irish VAT on supplements is 13.5%

VSL#3® is a registered trademark of VSL Pharmaceuticals Inc. and Actial S.r.l. Vivomixx® is a registered trademark of Mendes SA. Probiotic.ie is not affiliated with, endorsed by or connected to the holders of those trademarks, and nothing here should be read as a claim that CDS22-formula is, continues to be, or is a version of any of those branded products. Probiotic.ie sells CDS22-formula and is not a neutral party on this subject.

Start Here
Core Clinical Guides — Ireland
VSL#3 Alternatives in Ireland: The De Simone Formulation Explained →
What ECCO and the AGA have published, the US false-advertising findings, and the eight NCIMB-coded strains on the current CDS22-formula Irish label. Each statement attributed to the source that published it.
Clinical Probiotics Ireland: Strains, CFU & How to Choose →
What a strain deposit code tells you that a species name does not, why CFU count is not a measure of efficacy, and Alflorex, Symprove, Optibac and CDS22-formula compared by strain identity and published trial data.
Probiotics in UC, IBS & Pouchitis: An Evidence Review for Ireland →
The published randomised trials by condition, including Gionchetti 2000 and Mimura 2004 in pouchitis and Sood 2009 and Tursi 2010 in ulcerative colitis, alongside the limitations the guidelines attach to that evidence.
Probiotics and Ulcerative Colitis in Ireland: What the Evidence Says →
What the published randomised trials report in ulcerative colitis, including Sood 2009 and Tursi 2010, and what that evidence does and does not establish. Educational only, not treatment guidance.
Probiotics for Bloating Ireland: What the Evidence Actually Says →
What the published trials report, including Kim et al. 2003 and 2005 and the Goodoory 2023 meta-analysis in Gastroenterology, the limitations of that evidence, and a realistic 4 to 8 week timeline.
High-Strength Probiotics Ireland: CFU, Strains and How to Choose →
What high strength means in CFU terms, why a higher number is not automatically better, how to read a label by strain and deposit code, and the safety context for anyone immunocompromised.