The DOI matches its Crossref record; 117 of the 117 references it cites were found in a registry or an index.
A systematic review of the safety of probiotics
Abstract
INTRODUCTION: There is growing evidence on the use of probiotics in various diseases, especially in gastrointestinal (GI) diseases. Although probiotics have been found helpful in many illnesses, they do not always seem to be safe. Through interference with commensal microflora, they can result in opportunistic performances in the host due to bacterimia and fungemia. Since considerable numbers of consumers use probiotic products worldwide, assurance of safety of these products is necessary. AREAS COVERED: This review evaluates all the existing information about the safety of probiotics in humans and animal models up to May 2013. In all eligible published studies in which adverse effects and tolerability of probiotics were investigated and reported, no language limitations were applied. The main key search terms were 'probiotics,' 'safety,' 'side effects,' 'clinical trial' and 'adverse effects.' The vast majority of trials investigated Bifidobacterium (B) and Lactobacillus (L) species. EXPERT OPINION: The main observed adverse effects of probiotics were sepsis, fungemia and GI ischemia. Generally, critically ill patients in intensive care units, critically sick infants, postoperative and hospitalized patients and patients with immune-compromised complexity were the most at-risk populations. While the overwhelming existing evidence suggests that probiotics are safe, complete consideration of risk-benefit ratio before prescribing is recommended.
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“A systematic literature review of probiotic safety published in 2014 reported that “the overwhelming existing evidence suggests that probiotics are safe” for the general population, and that critically ill patients, postoperative and hospitalized patients and immunocompromised patients were the most at-risk groups wherein AEs occurred [220].”
From International Society of Sports Nutrition Position Stand: Probiotics (2019) · cites this paper as [220]
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“More broadly, safety reviews have emphasized that probiotic-associated sepsis, bacteremia, and fungemia are uncommon but clinically important, especially in severely ill, hospitalized, postoperative, or immunocompromised patients (Boyle et al., 2006; Didari et al., 2014).”
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Metadata
- Authors
- Didari, T., Solki, S., Mozaffari, S., Nikfar, S., & Abdollahi, M.
- Affiliations
- Islamic Azad University, Tehran (IR)
- Pharmaceutical Sciences Research Center (IR)
- Ministry of Health and Medical Education (IR)
- Venue
- Expert Opinion on Drug Safety
- Publisher
- Informa Healthcare
- Published
- 2014-01-03
- Volume
- 13
- Issue
- 2
- Pages
- 227-239
- ISSN
- 1474-0338 (ISSN-L)
- 1744-764X
- OpenAlex
- W2125631968
- Cited by
- 367
- References
- 117
- Citations by year
- 2026: 27 · 2025: 44 · 2024: 32 · 2023: 42 · 2022: 41 · 2021: 41 · 2020: 38 · 2019: 28 · 2018: 27 · 2017: 14 · 2016: 11 · 2015: 14 · 2014: 8
- FWCI
- 1.94
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Expert Opinion on Drug Safety (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Health Sciences › Medicine › Complementary and alternative medicine › Complementary and Alternative Medicine Studies
- Keywords
- probiotics, probiotic safety, adverse effects, sepsis, fungemia, gastrointestinal ischemia, Bifidobacterium, Lactobacillus, opportunistic infections, commensal microbiota, critically ill patients, immunocompromised patients, risk-benefit ratio
- MeSH terms
- Animals, Bifidobacterium, Humans, Lactobacillus, Safety, Probiotics, Drug-Related Side Effects and Adverse Reactions
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