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Analyzed using Evidence Intelligence™

EVOO supplementation reduces insulin needs and triglycerides in gestational diabetes

Powered by the Dediabetes Evidence Intelligence™ framework

Última actualización 8 de julio de 2026

Key finding

Insulin required during the intervention was significantly reduced in the EVOO group (RR 0.595, 95% CI 0.361–0.967, p < 0.05).

This study evaluated the effects of extra virgin olive oil supplementation in women with gestational diabetes, finding significant reductions in insulin requirements and neonatal complications.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Short-Term (≤3 mo)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

A plain-language read of the study’s main message and where it applies.

Study focus

This study evaluated the effects of extra virgin olive oil supplementation in women with gestational diabetes, finding significant reductions in insulin requirements and neonatal complications.

Clinical relevance

These findings suggest that dietary interventions, such as extra virgin olive oil supplementation, could be beneficial in managing gestational diabetes, potentially improving maternal and neonatal outcomes. This could lead to more effective dietary recommendations for pregnant women at risk of diabetes.

Keep in mind

The study's sample size and generalizability may be limited. No significant changes were observed in gestational weight gain or maternal BMI. The long-term effects of EVOO supplementation were not assessed.

Published in

Referencia de la Revista

Publication details and source links for this paper.

Alicia J, Silvia GDL, Magdalena R, et al. Dietary Supplementation with Extra Virgin Olive Oil in Women with Gestational Diabetes: A Multicenter Randomized Controlled Trial. Nutrients. 2026;18(7):1120. doi:10.3390/nu18071120

View DOIView on PubMedView on PMC

Efectos Principales

Insulin requirement during the intervention was significantly reduced in the EVOO group (RR 0.595, p < 0.05).

Triglyceridemia significantly decreased in the EVOO-supplemented group (MD -43.3 mg/dL, p < 0.01).

The rate of neonates with more than one complication was significantly reduced in the EVOO group (RR 0.340, p < 0.05).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Extra virgin olive oil supplementation and BMI, Gestational age at delivery (weeks), Gestational weight gain, and 4 more.

This study contributes evidence to

Intervention

Extra virgin olive oil supplementation

Outcome

BMI

Evidence topic

Weight Loss

Primary intervention

Extra virgin olive oil supplementation

Primary outcomes

  • BMI
  • Gestational age at delivery (weeks)
  • Gestational weight gain

Evidence topics

Weight Loss

Primary intervention

Extra virgin olive oil supplementation

Primary outcomes

BMIGestational age at delivery (weeks)Gestational weight gain

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

7
Evidence pairs
7
Relationships
1
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 63

1

Related topics

7

Evidence pairs

107

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 7 evidence relationships
  • Includes primary outcome data
  • Linked to 1 direct semantic evidence topic

Topic contributions

Evidence topic

Contributes evidence

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Evidencia principal

Tema de evidencia

Weight Loss

matched_outcome

Core evidence

Study findings

The primary outcomes reported in this study.

BMI

Extra virgin olive oil supplementation → BMI

Extra virgin olive oil supplementation → BMI

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Gestational age at delivery (weeks)

Extra virgin olive oil supplementation → Gestational age at delivery (weeks)

Extra virgin olive oil supplementation → Gestational age at delivery (weeks)

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Gestational weight gain

Extra virgin olive oil supplementation → Gestational weight gain

Extra virgin olive oil supplementation → Gestational weight gain

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
50
Neutral
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Insulin requirement during the intervention

Extra virgin olive oil supplementation → Insulin requirement during the intervention

Extra virgin olive oil supplementation → Insulin requirement during the intervention

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

NICU requirement percentage

Extra virgin olive oil supplementation → NICU requirement percentage

Extra virgin olive oil supplementation → NICU requirement percentage

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Rate of neonates with more than one complication

Extra virgin olive oil supplementation → Rate of neonates with more than one complication

Extra virgin olive oil supplementation → Rate of neonates with more than one complication

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Triglycerides

Extra virgin olive oil supplementation → Triglycerides

Extra virgin olive oil supplementation → Triglycerides

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Evidence Library

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evidence suggest

La Evidencia Sugiere

  • Insulin requirements decreased by 40.5% in the EVOO group.
  • Triglyceride levels dropped by an average of 43.3 mg/dL.
  • Neonatal complications were reduced by 66% in the EVOO group.
who this applies

A quién se aplica

  • Women diagnosed with gestational diabetes.
  • Pregnant women seeking dietary interventions for diabetes management.
keep in mind

Tener en Cuenta

  • Results may not apply to all populations due to sample size constraints.
  • Further research is needed to confirm long-term benefits of EVOO.
  • The study did not measure all potential confounding factors.
between the lines

Entre Líneas

  • The study's sample size and generalizability may be limited.
  • No significant changes were observed in gestational weight gain or maternal BMI.
  • The long-term effects of EVOO supplementation were not assessed.

Evidence Library

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

Powered by the Dediabetes Evidence Intelligence™ framework

This study contributes to evidence on Extra virgin olive oil supplementation and Body Mass Index, Extra virgin olive oil supplementation and Gestational age at delivery (weeks).

Relaciones de evidencia relacionadas

Explore in Evidence Explorer

This study contributes to the evidence on the following intervention-outcome relationships.

Incluido en estas colecciones de evidencia

Curated evidence collections and hubs this study is part of.

Body Mass Index Evidence Hub

All studies measuring Body Mass Index

1 studies
outcome_hub

Measures Body Mass Index as a key outcome.

Body Weight Evidence Hub

All studies measuring Body Weight

1 studies
outcome_hub

Measures Body Weight as a key outcome.

Extra virgin olive oil supplementation Evidence Hub

All studies on Extra virgin olive oil supplementation

1 studies
intervention_hub

Contributes to Extra virgin olive oil supplementation evidence base.

Gestational age at delivery (weeks) Evidence Hub

All studies measuring Gestational age at delivery (weeks)

1 studies
outcome_hub

Measures Gestational age at delivery (weeks) as a key outcome.

Recent Diabetes Research

Latest published studies

recency_collection

Published within the last 2 years.

Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

Does Extra virgin olive oil supplementation improve insulin requirement during the intervention?

Emerging Evidence

Extra virgin olive oil supplementation appears to improve Insulin requirement during the intervention.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Insulin requirement during the intervention

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
View Full Evidence

Does Extra virgin olive oil supplementation improve nicu requirement percentage?

Emerging Evidence

Extra virgin olive oil supplementation appears to improve NICU requirement percentage.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    NICU requirement percentage

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
View Full Evidence

Does Extra virgin olive oil supplementation improve rate of neonates with more than one complication?

Emerging Evidence

Extra virgin olive oil supplementation appears to improve Rate of neonates with more than one complication.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Rate of neonates with more than one complication

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
View Full Evidence

Does Extra virgin olive oil supplementation improve triglycerides?

Emerging Evidence

Extra virgin olive oil supplementation appears to improve Triglycerides.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Triglycerides

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
View Full Evidence
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Next steps

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Evidence topics

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Weight Loss Evidence Hub

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All studies on Extra virgin olive oil supplementation and Insulin requirement during the interventionAll studies on Extra virgin olive oil supplementation and TriglyceridesAll studies on Extra virgin olive oil supplementation and BMIAll studies on Extra virgin olive oil supplementation and Gestational age at delivery (weeks)

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