Research Summary
Analyzed using Evidence Intelligence™

Phase angle predicts VLCD success in type 2 diabetes

Last updated July 15, 2026

Key finding

HOMA-IR after treatment decreased by 12.505.

This study evaluated the effectiveness of a very low-calorie diet (VLCD) in newly diagnosed type 2 diabetes patients, finding significant improvements in insulin resistance and other metabolic markers.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Extended (5–20+ y)

Risk of bias

Some Concerns

Save research, organize studies, and quickly find important evidence again.

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 effectiveness of a very low-calorie diet (VLCD) in newly diagnosed type 2 diabetes patients, finding significant improvements in insulin resistance and other metabolic markers.

Clinical relevance

These findings are clinically significant as they suggest that a very low-calorie diet can be an effective intervention for managing type 2 diabetes, potentially leading to better long-term health outcomes. Understanding the predictors of dietary efficacy, such as phase angle, can help tailor treatments to individual patients, enhancing the overall management of diabetes.

Keep in mind

Non-randomized design limits causal inferences. Sample size may affect the generalizability of results. Lack of long-term follow-up data on sustained effects.

Published in

Journal Reference

Publication details and source links for this paper.

Yanjing F, Tianchi H, Yi Z, Rong L. Phase angle as a predictor of therapeutic efficacy of very low-calorie diet in newly diagnosed type 2 diabetes mellitus patients. Medicine. 2025;104(43):e45432. doi:10.1097/MD.0000000000045432

Main Effects

139 patients (62.3%) achieved HOMA-IR < 2.5, indicating improved insulin resistance.

Body weight decreased significantly by -7.691 kg/m² (p=0.001).

Fasting blood glucose levels decreased significantly by -5.772 mmol/L (p=0.001).

Fasting insulin levels decreased significantly by -11.925 mmol/L (p=0.001).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Very-low-calorie ketogenic diet and Body weight, Fasting Plasma Glucose (FPG), Fasting insulin levels, and 3 more.

Primary intervention

Very-low-calorie ketogenic diet

Primary outcomes

  • Body weight
  • Fasting Plasma Glucose (FPG)
  • Fasting insulin levels

Evidence relationships

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

6
Evidence pairs
6
Relationships
4
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: 72

4

Related topics

6

Evidence pairs

798

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 6 evidence relationships
  • Includes primary outcome data
  • Linked to 4 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Add related evidence to your Evidence Tracker

Save studies and evidence pages, organize your personal Evidence Tracker, and keep the research you care about in one place.

Primary evidence

Evidence relationship

Ketogenic Diets and Insulin Resistance

Related evidence

Evidence relationship

Ketogenic Diets and Body Weight

Save evidence

Evidence relationship

Ketogenic Diets and Fasting Glucose

Save evidence

Core evidence

Study findings

The primary outcomes reported in this study.

Body weight

Very-low-calorie ketogenic diet → Body weight

Very-low-calorie ketogenic diet → Body weight

Evidence Intelligence™
EvidenceScore™
76
Strong
ImpactScore™
100
Very Positive
ConsistencyScore™
100
consistent
Supporting studies: Based on 3 studies
Add to Evidence Tracker

Fasting insulin levels

Very-low-calorie ketogenic diet → Fasting insulin levels

Very-low-calorie ketogenic diet → Fasting insulin levels

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

Fasting Plasma Glucose (FPG)

Very-low-calorie ketogenic diet → Fasting Plasma Glucose (FPG)

Very-low-calorie ketogenic diet → Fasting Plasma Glucose (FPG)

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

Gastrointestinal disorders incidence

Very-low-calorie ketogenic diet → Gastrointestinal disorders incidence

Very-low-calorie ketogenic diet → Gastrointestinal disorders incidence

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 resistance

Very-low-calorie ketogenic diet → Insulin resistance

Very-low-calorie ketogenic diet → Insulin resistance

Evidence Intelligence™
EvidenceScore™
76
Strong
ImpactScore™
85
Very Positive
ConsistencyScore™
100
consistent
Supporting studies: Based on 3 studies
Add to Evidence Tracker

Phase angle

Very-low-calorie ketogenic diet → Phase angle

Very-low-calorie ketogenic diet → Phase angle

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

Evidence Library

Build your evidence library

Save research, organize studies, and quickly find important evidence again.

evidence suggest

Evidence Suggest

  • 62.3% of participants achieved significant insulin resistance reduction.
  • Body weight decreased by 7.691 kg/m² after VLCD.
  • Fasting blood glucose and insulin levels decreased significantly.
who this applies

Who this applies to

  • Adults newly diagnosed with type 2 diabetes.
  • Patients seeking dietary interventions for diabetes management.
keep in mind

Keep in Mind

  • Results may not apply to populations outside the study sample.
  • The effectiveness of VLCD may vary based on individual patient characteristics.
  • Further research is needed to confirm long-term outcomes and safety.
between the lines

Between the Lines

  • Non-randomized design limits causal inferences.
  • Sample size may affect the generalizability of results.
  • Lack of long-term follow-up data on sustained effects.

Evidence Library

Build your evidence library

Save research, organize studies, and quickly find important evidence again.

Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Ketogenic Diets and Body Weight, Ketogenic Diets and Insulin Resistance.

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 Ketogenic Diets improve insulin resistance?

Strong Evidence

Ketogenic Diets may improve Insulin Resistance.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    Insulin resistance

    EvidenceScore™ Strong | EvidenceScore™ 76.2 | strong positive | ConsistencyScore™ Consistent | 1 study

  2. 2

    Fasting insulin levels

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

Why this answer: This answer is based on 4 supporting studies with consistent results and a positive effect signal.

Limitations

  • Population details are unavailable.
4 supporting studiesUpdated: Jul 2026

Does Ketogenic Diets affect body weight?

Strong Evidence

Ketogenic Diets appears to improve Body Weight.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    Body weight

    EvidenceScore™ Strong | EvidenceScore™ 76.2 | strong positive | ConsistencyScore™ Consistent | 1 study

Why this answer: This answer is based on 3 supporting studies with consistent results and a positive effect signal.

Limitations

  • Population details are unavailable.
3 supporting studiesUpdated: Jul 2026

Does Ketogenic Diets improve fasting glucose?

Emerging Evidence

Ketogenic Diets appears to improve Fasting Glucose.

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

Ranked evidence signals

  1. 1

    Fasting Plasma Glucose (FPG)

    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 Ketogenic Diets affect gastrointestinal adverse events?

Emerging Evidence

Current evidence does not show a clear benefit of Ketogenic Diets for Gastrointestinal Adverse Events.

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

Ranked evidence signals

  1. 1

    Gastrointestinal disorders incidence

    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
Learn how Evidence Intelligence™ works

Next steps

Continue your research

Choose a next path through related evidence topics, Evidence Explorer views, and research summaries.

No ads. No tracking.

Focused on evidence, not advertising.

Secure & private

Your data is always protected.

Always up to date

New studies added every day.