SynthesisNutrition & diabetes2017
Olive oil in the prevention and management of type 2 diabetes mellitus: a systematic review and meta-analysis of cohort studies and intervention trials.
Synthesis in Nutrition & diabetes, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03891927 (Effect of Extra Virgin Olive Oil on Glycemic Control ,Insulin Resistance and Insulin Secretion in Patients With Type 2 Diabetes), which is not on this map. Cited by 86 papers, 14 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.
Effect of Extra Virgin Olive Oil on Glycemic Control ,Insulin Resistance and Insulin Secretion in Patients With Type 2 Diabetes
Who cites it
86 citing papers in PubMed, 14 syntheses or guidelines pooled it, 219 citations in OpenAlex.
- Mediterranean diet with high-phenolic EVOO slows kidney function decline and reduces inflammation in nondialysis CKD: a meta-analysis.Frontiers in nutrition · 2026Pooled it
- Effect of olive oil consumption on diabetes risk: a dose-response meta-analysis.Journal of health, population, and nutrition · 2025Pooled it
- Evaluating agreement between individual nutrition randomised controlled trials and cohort studies - a meta-epidemiological study.BMC medicine · 2025Pooled it
- Mediterranean diet enriched with olive oil shows no consistent benefits on cardiometabolic and anthropometric parameters: a systematic review with meta-analysis of randomized controlled trials.European journal of nutrition · 2024Pooled it
- Knowledge, Attitudes, and Behaviors around Dietary Fats among People with Type 2 Diabetes: A Systematic Review.Nutrients · 2024Pooled it
- Substitution of animal-based with plant-based foods on cardiometabolic health and all-cause mortality: a systematic review and meta-analysis of prospective studies.BMC medicine · 2023Pooled it
- Dietary Recommendations for Ethiopians on the Basis of Priority Diet-Related Diseases and Causes of Death in Ethiopia: An Umbrella Review.Advances in nutrition (Bethesda, Md.) · 2023Pooled it
- Effect of vitamin E intake on glycemic control and insulin resistance in diabetic patients: an updated systematic review and meta-analysis of randomized controlled trials.Nutrition journal · 2023Pooled it
- Association between Adherence to the Mediterranean Diet and Risk of Type 2 Diabetes: An Updated Systematic Review and Dose-Response Meta-Analysis of Prospective Cohort Studies.Advances in nutrition (Bethesda, Md.) · 2022Pooled it
- Olive oil consumption and risk of cardiovascular disease and all-cause mortality: A meta-analysis of prospective cohort studies.Frontiers in nutrition · 2022Pooled it
- Intake of dietary fats and fatty acids and the incidence of type 2 diabetes: A systematic review and dose-response meta-analysis of prospective observational studies.PLoS medicine · 2020Pooled it
- Role of diet in type 2 diabetes incidence: umbrella review of meta-analyses of prospective observational studies.BMJ (Clinical research ed.) · 2019Pooled it
- Mediterranean Diet Pyramid: A Proposal for Italian People. A Systematic Review of Prospective Studies to Derive Serving Sizes.Nutrients · 2019Pooled it
- Adherence to Mediterranean Diet and Risk of Cancer: An Updated Systematic Review and Meta-Analysis.Nutrients · 2017Pooled it
- Effect of pecan nuts and extra-virgin olive oil on glycemic profile and nontraditional anthropometric indexes in patients with coronary artery disease: a randomized clinical trial.European journal of clinical nutrition · 2022Trial
- Positive Effects of Extra-Virgin Olive Oil Supplementation and DietBra on Inflammation and Glycemic Profiles in Adults With Type 2 Diabetes and Class II/III Obesity: A Randomized Clinical Trial.Frontiers in endocrinology · 2022Trial
- Effects of nutrition education using a food-based approach, carbohydrate counting or routine care in type 1 diabetes: 12 months prospective randomized trial.BMJ open diabetes research & care · 2021Trial
- Effects of a Mediterranean Eating Plan on the Need for Glucose-Lowering Medications in Participants With Type 2 Diabetes: A Subgroup Analysis of the PREDIMED Trial.Diabetes care · 2019Trial
- Effects of high-oleic dietary interventions on cardiometabolic outcomes in adults: a GRADE-based systematic review and meta-analysis of randomized controlled trials.Diabetology & metabolic syndrome · 2026Review
- An extra virgin olive oil diet impairs glycemic control, but mitigates high-fat diet-induced inflammation compared to coconut oil in mice.Frontiers in nutrition · 2026Article
26 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
objectivesOlive oil (OO) as food is composed mainly of fatty acids and bioactive compounds depending from the extraction method. Both had been discussed as health promoting with still open questions. Thus, we conducted a meta-analysis to illustrate the impact of this food on type 2 diabetes (T2D) by investigating the association between OO intake and risk of T2D, and the effect of OO intake in the management of T2D. SUBJECTS/
methodsSearches were performed in PubMed, Cochrane Library and google scholar. First, we conducted a random effect meta-analysis of prospective cohort studies and trials investigating the association between OO and risk of T2D. Second, a meta-analysis was performed to detect the effects of olive oil on glycemic control in patients with T2D.
resultsFour cohort studies including 15 784 T2D cases and 29 trials were included in the meta-analysis. The highest OO intake category showed a 16% reduced risk of T2D (RR: 0.84; 95% CI: 0.77, 0.92) compared with the lowest. However, we observed evidence for a nonlinear relationship. In T2D patients OO supplementation resulted in a significantly more pronounced reduction in HbA1c (MD: -0.27%; 95% CI: -0.37, -0.17) and fasting plasma glucose (MD: -0.44 mmol l
conclusionsThis meta-analysis provides evidence that the intake of OO could be beneficial for the prevention and management of T2D. This conclusion regards OO as food, and might not been valid for single components comprising this food.
Indexed as
Identifiers
What Socratic 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 Socratic graph.