SynthesisNutrients2020
Efficacy of Spice Supplementation in Rheumatoid Arthritis: A Systematic Literature Review.
Synthesis in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.
- Efficacy and safety of dietary polyphenols in rheumatoid arthritis: A systematic review and meta-analysis of 47 randomized controlled trials.Frontiers in immunology · 2023Pooled it
- Effect ofNutrients · 2021Pooled it
- [Recommendations of the German Society for Rheumatology committee for complementary treatment and nutrition on phytotherapy : Supplement on the use of selected phytotherapeutic agents and herbal preparations in rheumatology: extension to include 13 medicinal plants].Zeitschrift fur Rheumatologie · 2026Review
- The Role of Nutrition in the Development, Management, and Prevention of Rheumatoid Arthritis: A Comprehensive Review.Nutrients · 2025Review
- [Influence of smoking, nutrition and other modifiable environmental factors on rheumatoid arthritis].Zeitschrift fur Rheumatologie · 2024Review
- The effectiveness and safety of lifestyle medicine and integrative therapies in inflammatory arthritis: an umbrella review using a hierarchical evidence gathering approach.Frontiers in medicine · 2024Review
- Different modalities to manage rheumatoid arthritis: an A to Z story.Future science OA · 2024Review
- Review
- The effect of an anti-inflammatory diet on chronic pain: a pilot study.Frontiers in nutrition · 2023Article
- Lifestyle Factors and Their Influence on Rheumatoid Arthritis: A Narrative Review.Journal of clinical medicine · 2022Review
- Nutrition and Diet in Rheumatoid Arthritis.Nutrients · 2022Article
- Potential Benefits of Curcumin in Rheumatoid Arthritis.American journal of lifestyle medicineArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSpices, i.e., curcumin, ginger, saffron, and cinnamon, have a thousand-year history of medicinal use in Asia. Modern medicine has begun to explore their therapeutic properties during the last few decades. We aimed to perform a systematic literature review (SLR) of randomized controlled trials (RCTs) assessing the effect of spice supplementation on symptoms and disease activity in patients with chronic inflammatory rheumatic diseases (rheumatoid arthritis (RA), spondylarthritis, or psoriatic arthritis).
methodsAn SLR of RCTs, reviews, and meta-analyses was performed, searching for articles in MEDLINE/PubMed. Abstracts from international rheumatology and nutrition congresses (2017-2020) were also scrutinized. The risk of bias of the selected studies was evaluated using the Cochrane Collaboration's tool and the Jadad scale.
resultsAltogether, six studies, assessing the use of spice supplementation only in RA patients, were included: one on garlic supplementation, two on curcumin, one on ginger, one on cinnamon, and one on saffron supplementation. Garlic, ginger, cinnamon, or saffron supplementation was associated with a decrease in RA clinical activity. However, several points limit the external validity of these studies. No conclusion on the impact of curcumin supplementation on RA activity could be drawn due to low-quality studies.
conclusionsGarlic, ginger, cinnamon, and saffron supplementation could have a beneficial effect on RA activity, but the risk of bias of these studies is difficult to assess and data are too limited to recommend them in daily practice.
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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.