ArticlePharmaceuticals (Basel, Switzerland)2024
Bioavailability of Oral Curcumin in Systematic Reviews: A Methodological Study.
Article in Pharmaceuticals (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.
What it found
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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
32 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Efficacy and safety of different curcumin formulations in osteoarthritis: an umbrella review of systematic reviews.Frontiers in medicine · 2026Pooled it
- Effects of Zingiberaceae-derived interventions on memory-related and other cognitive outcomes in adults: a systematic review and meta-analysis.Frontiers in nutrition · 2026Pooled it
- A 'three-axis synergy' immunotherapeutic strategy for malignant bone tumors based on natural bioactives and bioactive materials.Bioactive materials · 2026Review
- Liposomal Nano-Curcumin Attenuates Cisplatin-Induced Hepatotoxicity in Rats with Concomitant Regulation of Wnt/β-Catenin/GSK-3β and Nrf2 Signaling.Biomedicines · 2026Article
- Methodological Approaches to Bioavailability of Oral Creatine in Randomized Controlled Trials: A Meta-Research Study.Nutrients · 2026Article
- Pharmacological evaluation reveals distinct anti-proliferative and migration-associated effects of curcumin analogues B-143 and B-155 in ovarian cancer cells.Molecular biology reports · 2026Article
- Natural Products in Cancer Research: Mechanistic Advances, Translational Challenges, and the Emerging Role of Chilean Biodiversity.Molecules (Basel, Switzerland) · 2026Review
- TCM-Derived Small Molecules Targeting Metabolic Vulnerabilities in NSCLC: Ferroptosis-Centered Mechanisms and Emerging Cuproptosis- and Disulfidptosis-Related Vulnerabilities.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Curcumin in Alzheimer's Disease: From Mechanistic Insights to Translational Challenges and Emerging Curcuminoid Strategies.International journal of molecular sciences · 2026Review
- Review
- Review
- Advances in natural compounds modulating autophagy for the therapeutic intervention of heart failure.Molecular and cellular biochemistry · 2026Review
- Curcumin treatment attenuates methotrexate-induced nephrotoxicity in rats by inhibiting inflammation and fibrosis.Journal of molecular histology · 2026Article
- Pharmacological Insights and Technological Innovations inPharmaceuticals (Basel, Switzerland) · 2026Review
- Pharmacological Complexities of Herbal Medicinal Extracts: A Review of Bioavailability, Interactions, and Standardization.Current drug metabolism · 2026Review
- The effect of a topical curcumin formulation (VAS-101) on knee pain in adults with knee osteoarthritis: a randomised, double-blind, placebo-controlled study.Frontiers in pain research (Lausanne, Switzerland) · 2026Article
- Curcumin and Acute Myeloid Leukemia: Synergistic Effects with Targeted Therapy.International journal of molecular sciences · 2025Review
- Synthesis, characterization and molecular docking study of novel bile acid curcumin conjugates as potent antibacterial and antibiofilm agents.Scientific reports · 2025Article
- Adipo-Modulation by Turmeric Bioactive Phenolic Components: From Curcuma Plant to Effects.International journal of molecular sciences · 2025Review
- Curcumin and acute myeloid leukemia: a golden hope, updated insights.Molecular biology reports · 2025Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Curcumin is a natural compound found in turmeric that exhibits diverse biological activities. However, its poor bioavailability limits its therapeutic application, which has led to the development of various bioavailability-improved formulations. In this methodological study, we analyzed whether systematic reviews on curcumin considered the bioavailability of systemic oral curcumin formulations when synthesizing evidence from human clinical trials. A total of 171 systematic reviews published between 2003 and 2022 were included in the study. From the included studies, we extracted data on study characteristics; type of curcumin; methods; and reporting regarding bioavailability, funding, and conflict of interest. Our results show that systematic reviews rarely consider the variable bioavailability of tested curcumin formulations. Relevant statistical subgroup and/or sensitivity analyses were reported in the methods and results of only 3.5% and 6.4% of reviews, respectively. However, more reviews mentioned bioavailability in their discussion (57%) or conclusion (13%). The detailed analysis of the included systematic reviews suggests that there is broad recognition of product bioavailability as a crucial factor affecting the health effects of curcumin, which is not accompanied by adequate evidence synthesis. Therefore, the results of most systematic reviews on orally administered curcumin should be taken with caution.
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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.