ReviewHeliyon2023
Contamination of herbal medicinal products in low-and-middle-income countries: A systematic review.
Review in Heliyon, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed.
- Trial
- Association Between FDA Drug Recall Classification and Product-Related Characteristics.Therapeutic innovation & regulatory science · 2026Article
- REVIEW: Unveiling the potential of herbal biomedicines as a sustainable solution for the aquaculture industry.Fish physiology and biochemistry · 2026Review
- Nano-Enabled Herbal Remedies for Malaria Treatment: A Review of Recent Advances.Life (Basel, Switzerland) · 2026Review
- Identifying immunostimulatory herbal supplements that may flare autoimmune skin diseases: a systematic scoping review.Lupus science & medicine · 2025Article
- Herbal and Spice Additives in Functional Confectionery Products: A Review.Molecules (Basel, Switzerland) · 2025Review
- Impact of Green-Synthesized Silver Nanoparticle in Wistar Rats: Behavioral, Biochemical, And Histopathological Insights from Acute and Sub-Acute Oral Exposure.Archives of Razi Institute · 2025Article
- The safety of herbal medicines in low- and middle-income countries (LMICs): current landscape and promoting the pharmacovigilance practices.Journal of pharmaceutical policy and practice · 2025Article
- Alcohol in Daily Products: Health Risks, Cultural Considerations, and Economic Impacts.Risk management and healthcare policy · 2025Review
- Quality Control and Safety Assessment of Online-Purchased Food Supplements Containing Red Yeast Rice (RYR).Foods (Basel, Switzerland) · 2024Article
- Fully recovered severe lead-induced peripheral neuropathy.Acta neurologica Belgica · 2024Article
- Microbial Contamination of Herbal Medicines in Africa, 2000-2024: A Systematic Review.Environmental health insights · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The use of herbal medicinal products (HMPs) has grown significantly across low-and-middle-income countries (LMICs). Consequently, the safety of these products due to contamination is a significant public health concern. This systematic review aimed to determine the prevalence, types, and levels of contaminants in HMPs from LMICs. A search was performed in seven online databases, i.e., Africa journal online (AJOL), Cumulative Index to Nursing and Allied Health Literature (CINAHL), Directory of Open Access Journals (DOAJ), Health Inter-Network Access to Research Initiative (HINARI), World Health Organization Global Index Medicus (WHO GIM), Scopus, and PubMed using appropriate search queries and reported as per the "Preferred Reporting Items for Systematic Reviews and Meta-Analyses" (PRISMA) guidelines. Ninety-one peer-reviewed articles published from 1982 to 2021 from 28 different countries across four continents were included in the study. Although metals, microbial, mycotoxins, pesticides, and residual solvents were the reported contaminants in the 91 articles, metals (56.0%, 51/91), microbial (27.5%, 25/91), and mycotoxins (18.7%, 17/91) were the most predominant. About 16.4% (1236/7518) of the samples had their contaminant levels above the regulatory limits. Samples tested for microbial contaminants had the highest proportion (46.4%, 482/1039) of contaminants exceeding the regulatory limit, followed by mycotoxins (25.8%, 109/423) and metals (14.3%, 591/4128). The proportion of samples that had their average non-essential metal contaminant levels above the regulatory limit was (57.6%, 377/655), 18.3% (88/480), 10.7% (24/225), and 11.3% (29/257) for Pb, Cd, Hg, and As, respectively. The commonest bacteria species found were
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.