Correspondence | Published:

Response to Dr. Baldassarre

The American Journal of Gastroenterology (2018) | Download Citation


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    Baldassarre M. Probiotic genera/species identification is insufficient for evidence-based medicine. Am J Gastroenterol. 2018

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    Koretz RL. Probiotics in gastroenterology: How pro is the evidence in adults? Am J Gastroenterol. 2018;113:1125–1136

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    Biagioli M, Laghi L, Carino A, et al. Metabolic variability of amultispecies probiotic preparation impacts on the anti-inflammatory activity. Front Pharmacol. 2017;8:505

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    Trinchieri V, Laghi L, Vitali B, et al. Efficacy and safety of a multistrain probiotic formulation depends from manufacturing. Front Immunol. 2017;8:1474

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Author information


  1. Department of Medicine, Division of Gastroenterology, Olive View-UCLA Medical Center, Sylmar, California, USA

    • Ronald L. Koretz MD
  2. Emeritus Professor of Clinical Medicine, David Geffen-UCLA School of Medicine, Los Angeles, California, USA

    • Ronald L. Koretz MD


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Guarantor of the article

Ronald L. Koretz, MD.

Specific author contributions

Dr. Koretz wrote this letter.

Funding support


Potential competing interests

Dr. Koretz does receive assistance from GIIssues, Inc., a non-profit 501 (c) (3) organization that was created to promote the use of evidence-based medicine. This assistance is only for academic activities (e.g., travel to meetings, research funding, subscriptions to medical journals, and professional organization dues and fees). Dr. Koretz does not receive any salary or other personal money from GIIssues, Inc.

Corresponding author

Correspondence to Ronald L. Koretz MD.

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