SynthesisLipids in health and disease2020
Effects of fish oil supplementation on glucose control and lipid levels among patients with type 2 diabetes mellitus: a Meta-analysis of randomized controlled trials.
Synthesis in Lipids in health and disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 6 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
24 citing papers in PubMed, 6 syntheses or guidelines pooled it, 54 citations in OpenAlex.
- Comparative Cardiovascular, Lipid, and Safety Effects of Lipid-Modifying Therapies in Diabetes: An Agent-, Class-, and Dose-Level Network Meta-Analysis.Cardiovascular drugs and therapy · 2026Pooled it
- Effects of n-3 Polyunsaturated Fatty Acid Supplementation on Cardiovascular Indices in Type 2 Diabetes: A Meta-analysis of Randomized Controlled Trials.Reviews in cardiovascular medicine · 2025Pooled it
- Comparison of fish oil supplements and corn oil effects on serum lipid profile: a systematic review and meta-analysis of randomized controlled trials.Systematic reviews · 2024Pooled it
- Impact of α-Linolenic Acid, the Vegetable ω-3 Fatty Acid, on Cardiovascular Disease and Cognition.Advances in nutrition (Bethesda, Md.) · 2022Pooled it
- Pooled it
- Effects of Fish Oil Supplementation on Cardiometabolic Risk Factors in Overweight or Obese Children and Adolescents: A Meta-Analysis of Randomized Controlled Trials.Frontiers in pediatrics · 2021Pooled it
- Marine n-3 fatty acid treatment for carotid plaques in patients with type 2 diabetes.Cardiovascular diabetology · 2026Trial
- Reduction of cardiovascular risk factors by the diet - Evaluation of the MoKaRi concept by a parallel-designed randomized study.Lipids in health and disease · 2025Trial
- Effects of marine-derived and plant-derived omega-3 polyunsaturated fatty acids on erythrocyte fatty acid composition in type 2 diabetic patients.Lipids in health and disease · 2022Trial
- Trial
- A functional medicine approach to diabetes control and quality of life: an open-label randomized pilot study.Journal of clinical & translational endocrinology · 2026Article
- Causal impact of genetically-determined fish and fish oil intake on epigenetic age acceleration and related serum markers.Human genomics · 2025Article
- Dietary menhaden fish oil supplementation suppresses lipopolysaccharide-induced neuroinflammation and cognitive impairment in diabetic rats.Pharmaceutical biology · 2024Article
- Comparison of the efficacy of fish oil and probiotic supplementation on glucose and lipid metabolism in patients with type 2 diabetes: a systematic review and network meta-analysis.Diabetology & metabolic syndrome · 2024Review
- Fish - a scoping review for Nordic Nutrition Recommendations 2023.Food & nutrition research · 2024Article
- The Mediterranean Diet: Effects on Insulin Resistance and Secretion in Individuals with Overweight or Obesity.Nutrients · 2023Article
- Article
- Assessing the Highest Level of Evidence from Randomized Controlled Trials in Omega-3 Research.Nutrients · 2023Review
- Processing Alaska Pollock Protein (Foods (Basel, Switzerland) · 2022Article
- A novel in vitro approach to test the effectiveness of fish oil in ameliorating type 1 diabetes.Molecular and cellular biochemistry · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundPrevious studies have yielded inconsistent findings on the role of fish oil in type 2 diabetes mellitus (T2DM). We systematically summarized the available evidence from randomized controlled trials (RCT) and aimed to investigate the effects of fish oil supplementation on glucose control and lipid levels among patients with T2DM.
methodsA comprehensive literature search was performed in electronic databases (PubMed, ProQuest, Cochrane Library, CNKI, VIP, and Wanfang) to identify all relevant RCTs which were published up to May 31st, 2019. We used Modified Jadad Score system to evaluate the quality of each included RCT. The pooled effects were estimated using random-effects model and presented as standardized mean differences with 95% confidence intervals.
resultsA total of 12 RCTs were included in this meta-analysis. There was no significant difference in glucose control outcomes comparing fish oil supplementation to placebo. The effect size of fasting plasma glucose (FPG) was 0.13 (95% CI: - 0.03 to 0.28, p > 0.05). No marked change was observed in fasting insulin (FINS), glycosylated hemoglobin (HbA1c), and HOMA of insulin resistance (HOMA-IR) levels. Fish oil supplementation was associated with a decrease of triglyceride (TG) level by - 0.40 (95%CI: - 0.53 to - 0.28, p < 0.05), and an increase of high density lipoprotein (HDL) cholesterol level by 0.21 (95%CI: 0.05 to 0.37, p < 0.05). In subgroup analysis, HDL cholesterol level was higher among Asian and low-dose(< 2 g/d n-3 PUFA) subgroups compared to their counterparts (p < 0.05). TG level was lower in mid and long duration groups, along with an inconspicuous difference in short duration group.
conclusionsThis meta-analysis shows that among patients with T2DM, fish oil supplementation leads to a favorable blood lipids profile but does not improve glucose control.
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Identifiers
What OpenQuestion holds
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.