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Research Summary
Analyzed using Evidence Intelligence™

Whole food plant-based diet improves weight loss in type 2 diabetes

Powered by the Dediabetes Evidence Intelligence™ framework

Last updated August 22, 2026

Key finding

Mean BMI reduction was greater with the WFPB diet compared with normal care (4.4 vs 0.4, difference: 3.9 kg m−2 (95% CI ±1), P <0.0001).

This study evaluated the effects of a whole food plant-based diet on weight loss in adults with type 2 diabetes, finding significant reductions in BMI.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Long-Term (1–5 y)

Risk of bias

High Risk

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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 a whole food plant-based diet on weight loss in adults with type 2 diabetes, finding significant reductions in BMI.

Clinical relevance

This study highlights the potential of dietary interventions, particularly whole food plant-based diets, in managing weight and possibly improving health outcomes for individuals with type 2 diabetes. Effective weight management is crucial for reducing diabetes-related complications and enhancing overall health.

Keep in mind

The study's sample size and demographic diversity were not specified. The long-term sustainability of the diet was not assessed. The study did not measure other potential confounding factors affecting weight loss.

Published in

Journal Reference

Publication details and source links for this paper.

N W, L W, M S, B D, P M. Whole food plant-based diet for weight loss in adults with type 2 diabetes: a randomized controlled trial. Nutrition & Diabetes. 2017;7(3). doi:10.1038/nutd.2017.3

View DOIView on PubMedView on PMC

Main Effects

The WFPB diet group experienced a mean BMI reduction of 4.4 kg/m² compared to 0.4 kg/m² in the control group (P <0.0001).

At 12 months, the WFPB diet group had a mean BMI reduction of 4.2 (±0.8) kg/m².

Total cholesterol reduction was 0.55 (±0.54) mmol/l in the WFPB diet group at 12 months (P =0.05).

Evidence network

How this study fits

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Evidence Context

This study contributes evidence to Mediterranean ketogenic diet and BMI, Total cholesterol.

This study contributes evidence to

Intervention

Mediterranean ketogenic diet

Outcome

BMI

Evidence topic

Dietary Patterns

Primary intervention

Mediterranean ketogenic diet

Primary outcomes

  • BMI
  • Total cholesterol

Evidence topics

Dietary PatternsWeight LossKetogenic Diets

Primary intervention

Mediterranean ketogenic diet

Primary outcomes

BMITotal cholesterol

Evidence relationships

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

2
Evidence pairs
2
Relationships
3
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: 60

3

Related topics

2

Evidence pairs

1197

Related studies

High relevance in at least one topic

Why it is useful

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

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

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Primary evidence

Evidence relationship

Ketogenic Diets and Adipokine and Angiogenic Markers

Related evidence

Evidence relationship

Ketogenic Diets and Body Mass Index

Save evidence

Evidence topic

Dietary Patterns

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Core evidence

Study findings

The primary outcomes reported in this study.

BMI

Mediterranean ketogenic diet → BMI

Mediterranean ketogenic diet → BMI

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

Total cholesterol

Mediterranean ketogenic diet → Total cholesterol

Mediterranean ketogenic diet → Total cholesterol

Evidence Intelligence™
EvidenceScore™
Moderate
Score 69 · Based on 2 studies
ImpactScore™
75
Positive
ConsistencyScore™
35
mixed
Supporting studies: Based on 2 studies
Add to Evidence Tracker

Evidence Library

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evidence suggest

Evidence Suggest

  • WFPB diet led to a significant BMI reduction of 3.9 kg/m² compared to normal care.
  • Total cholesterol reduction was greater in the WFPB group, though not statistically significant.
  • At 12 months, cholesterol levels improved by 0.55 mmol/l in the WFPB group.
who this applies

Who this applies to

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

Keep in Mind

  • Results may not be generalizable to all populations with diabetes.
  • The study did not explore the long-term effects of the diet.
  • Further research is needed to confirm these findings and assess sustainability.
between the lines

Between the Lines

  • The study's sample size and demographic diversity were not specified.
  • The long-term sustainability of the diet was not assessed.
  • The study did not measure other potential confounding factors affecting weight loss.

Evidence Library

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Connected Evidence

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Relationships organized using the Dediabetes Evidence Intelligence™ framework.

Powered by the Dediabetes Evidence Intelligence™ framework

This study contributes to evidence on Ketogenic Diets and Adipokine and Angiogenic Markers, Ketogenic Diets and Body Mass Index.

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™.

Do Ketogenic Diets improve adipokine and angiogenic markers?

Strong Evidence

Ketogenic Diets may improve adipokine and angiogenic markers.

ConsistencyScore™: Results are generally consistent across studies.

Ranked evidence signals

  1. 1

    Total cholesterol

    EvidenceScore™ Moderate | EvidenceScore™ 69.0 | moderate positive | ConsistencyScore™ Mixed | 1 study

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

4 supporting studies
View Full Evidence

Do Ketogenic Diets affect body mass index?

Moderate Evidence

Ketogenic Diets appear to affect body mass index.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    BMI

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

Why this answer: This answer is based on a small number of supporting studies and should be interpreted cautiously.

Limitations

  • Only a small number of supporting studies are available.
2 supporting studies
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Next steps

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Evidence topics

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Dietary Patterns Evidence HubWeight Loss Evidence HubKetogenic Diets Evidence Hub

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All studies on Mediterranean ketogenic diet and Total cholesterolAll studies on Mediterranean ketogenic diet and BMI

Related research

Read related research summaries.

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