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.

Probiotic & Gut Health
Comparison Guides
Magnesium Guides
Supplement Guides

Reference guides · Educational content · Updated regularly

Which Magnesium Is Best? Every Form Compared (Ireland)

By Darren Grant on Jul 08, 2026

Evidence Guide · Magnesium Forms Ireland · July 2026 Glycinate, citrate, malate, taurate, L-threonate. The forms look different, and the marketing tells you each one is "for" something specific...

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Glycine Supplement Ireland: Sleep, Collagen & Evidence Guide

By Darren Grant on Apr 30, 2026

Yamadera et al. (Sleep and Biological Rhythms, 2007) found that 3 g of glycine ingested before bedtime significantly shortened latency to sleep onset (p = 0.01) and to slow wave sleep (p = 0.019) in polysomnographic measurements, while Bannai and Kawai (Journal of Pharmacological Sciences, 2012, Ajinomoto Co.) identified NMDA receptor activity in the suprachiasmatic nucleus as the proposed mechanism by which glycine is thought to lower core body temperature and support sleep onset. This Ireland evidence guide covers the glycine-for-sleep mechanism, RCT data from Yamadera et al. and Bannai et al., the GlyNAC longevity stack, collagen synthesis context, glycine versus magnesium glycinate explained, dosage guidance, and NOW Glycine 1000mg 100 Veg Capsules — available with nationwide Ireland delivery from Probiotic.ie.

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Magnesium for Sleep in Ireland: Does Magnesium Glycinate Work? Evidence, Dosage and Best Forms

By Darren Grant on Feb 25, 2026

In a 2025 randomised, placebo-controlled trial (Schuster et al., Nature and Science of Sleep, PMID 40918053), 250mg of elemental magnesium as bisglycinate reduced insomnia severity scores over four weeks versus placebo in 155 adults, with a small effect and the largest gains in people with low magnesium intake. This Ireland guide covers the EFSA-authorised claims for magnesium, HSE dosing (300mg/day men, 270mg/day women), the glycine mechanism, and how the forms compare for Irish buyers.

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Magnesium Glycinate in Ireland: Benefits, Dosage and How to Choose

By Darren Grant on Feb 25, 2026

Magnesium glycinate and magnesium bisglycinate are the same compound: magnesium bound to glycine, chosen for gastrointestinal tolerance. This Ireland guide covers HSE intake guidance (300mg/day men, 270mg/day women, ages 19 to 64), the elemental magnesium label trap, EU-authorised claims under Regulation 432/2012, and how to compare glycinate products for Irish buyers.

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Magnesium Bisglycinate in Ireland: Benefits, Dosage & How to Choose

By Darren Grant on Feb 25, 2026

Magnesium bisglycinate is magnesium chelated to glycine, chosen for its gastrointestinal tolerance. This Ireland guide covers the 2025 bisglycinate sleep RCT (Schuster et al., PMID 40918053), the EFSA-authorised claims for magnesium, HSE dosing (300mg/day men, 270mg/day women), the elemental magnesium label trap, and how to choose a supplement.

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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.