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Research Summary
Analyzed using Evidence Intelligence™

Improved dietary quality from a lifestyle intervention for diabetes prevention

Powered by the Dediabetes Evidence Intelligence™ framework

Last updated July 18, 2026

Key finding

The PROVEN-DIA group exhibited significantly greater improvements in diet quality, with a 2.8-point increase in the BALANCE Index (vs. 0.5 in the control, p = 0.03).

This study evaluated the feasibility of a culturally adapted lifestyle intervention for preventing Type 2 diabetes in Brazil, finding significant improvements in diet quality.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Medium-Term (3–12 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 feasibility of a culturally adapted lifestyle intervention for preventing Type 2 diabetes in Brazil, finding significant improvements in diet quality.

Clinical relevance

Improving diet quality is crucial in preventing Type 2 diabetes, a growing health concern in Brazil. This study highlights the potential of culturally tailored interventions to enhance dietary habits, which may lead to better health outcomes in at-risk populations. By demonstrating the effectiveness of the PROVEN-DIA program, it provides a model for future diabetes prevention efforts.

Keep in mind

The study did not find significant differences in several key health outcomes. Sample size and demographic characteristics may limit generalizability. The intervention's long-term effectiveness remains unclear.

Published in

Journal Reference

Publication details and source links for this paper.

Raira P, Thatiane LVDPO, Danielle CF, et al. Feasibility of a Culturally Adapted Lifestyle Intervention for Type 2 Diabetes Prevention in Brazil. Nutrients. 2025;17(15):2518. doi:10.3390/nu17152518

View DOIView on PubMedView on PMC

Main Effects

The PROVEN-DIA group showed a significant improvement in diet quality with a 2.8-point increase in the BALANCE Index (p = 0.03).

No significant differences were found in adherence to dietary recommendations between the PROVEN-DIA and usual care groups.

Both groups showed no significant differences in engagement in moderate-to-vigorous physical activity, HbA1c, glycaemia, and body weight.

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Adherence to dietary recommendations measured by BALANCE Index, Body weight, Glycaemia, and 3 more.

This study contributes evidence to

Intervention

Culturally Adapted Lifestyle Intervention for Diabetes Prevention

Outcome

Adherence to dietary recommendations measured by BALANCE Index

Evidence topic

HbA1c Reduction

Primary intervention

Culturally Adapted Lifestyle Intervention for Diabetes Prevention

Primary outcomes

  • Adherence to dietary recommendations measured by BALANCE Index
  • Body weight
  • Glycaemia

Evidence topics

HbA1c ReductionPhysical Activity LevelsTreatment AdherenceWeight Loss

Primary intervention

Culturally Adapted Lifestyle Intervention for Diabetes Prevention

Primary outcomes

Adherence to dietary recommendations measured by BALANCE IndexBody weightGlycaemia

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

573

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

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Primary evidence

Evidence topic

HbA1c Reduction

matched_outcome

Related evidence

Evidence topic

Physical Activity Levels

Save evidence

Core evidence

Study findings

The primary outcomes reported in this study.

Adherence to dietary recommendations measured by BALANCE Index

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Adherence to dietary recommendations measured by BALANCE Index

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Adherence to dietary recommendations measured by BALANCE Index

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

Body weight

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Body weight

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Body weight

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

Glycaemia

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Glycaemia

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Glycaemia

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

HbA1c

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → HbA1c

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → HbA1c

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

Overall diet quality measured using Nordic Nutrition Recommendation score

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Overall diet quality measured using Nordic Nutrition Recommendation score

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Overall diet quality measured using Nordic Nutrition Recommendation score

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

Physical activity level (MET-minutes per week)

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Physical activity level (MET-minutes per week)

Culturally Adapted Lifestyle Intervention for Diabetes Prevention → Physical activity level (MET-minutes per week)

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

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evidence suggest

Evidence Suggest

  • PROVEN-DIA improved diet quality by 2.8 points compared to usual care (p = 0.03).
  • No significant differences in dietary adherence were observed between groups.
  • Physical activity levels and other health metrics showed no significant changes.
who this applies

Who this applies to

  • Adults at risk for Type 2 diabetes in Brazil.
  • Individuals seeking culturally adapted lifestyle interventions.
keep in mind

Keep in Mind

  • Results may not be applicable to populations outside Brazil.
  • The intervention's impact on long-term diabetes prevention is not established.
  • Further research is needed to explore other health outcomes.
between the lines

Between the Lines

  • The study did not find significant differences in several key health outcomes.
  • Sample size and demographic characteristics may limit generalizability.
  • The intervention's long-term effectiveness remains unclear.

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.

Powered by the Dediabetes Evidence Intelligence™ framework

This study contributes to evidence on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Adherence to dietary recommendations measured by BALANCE Index, Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Body Weight.

Related evidence relationships

Explore in Evidence Explorer

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

Included in these evidence collections

Curated evidence collections and hubs this study is part of.

Adherence to dietary recommendations measured by BALANCE Index Evidence Hub

All studies measuring Adherence to dietary recommendations measured by BALANCE Index

1 studies
outcome_hub

Measures Adherence to dietary recommendations measured by BALANCE 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.

Culturally Adapted Lifestyle Intervention for Diabetes Prevention Evidence Hub

All studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention

1 studies
intervention_hub

Contributes to Culturally Adapted Lifestyle Intervention for Diabetes Prevention evidence base.

Overall diet quality measured using Nordic Nutrition Recommendation score Evidence Hub

All studies measuring Overall diet quality measured using Nordic Nutrition Recommendation score

1 studies
outcome_hub

Measures Overall diet quality measured using Nordic Nutrition Recommendation score as a key outcome.

Recent Diabetes Research

Latest published studies

recency_collection

Published within the last 2 years.

Explore more in Evidence Explorer

Jump to pre-filtered views in Evidence Explorer.

All studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Adherence to dietary recommendations measured by BALANCE Index

Intervention: Culturally Adapted Lifestyle Intervention for Diabetes PreventionOutcome: Adherence to dietary recommendations measured by BALANCE Index

1 results

All studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Body weight

Intervention: Culturally Adapted Lifestyle Intervention for Diabetes PreventionOutcome: Body weight

1 results

All studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention

Intervention: Culturally Adapted Lifestyle Intervention for Diabetes Prevention

1 results

All studies measuring Adherence to dietary recommendations measured by BALANCE Index

Outcome: Adherence to dietary recommendations measured by BALANCE Index

1 results

All studies measuring Body weight

Outcome: Body weight

1 results

Questions answered by this study

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

Does Culturally Adapted Lifestyle Intervention for Diabetes Prevention improve overall diet quality measured using nordic nutrition recommendation score?

Emerging Evidence

Culturally Adapted Lifestyle Intervention for Diabetes Prevention appears to improve Overall diet quality measured using Nordic Nutrition Recommendation score.

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

Ranked evidence signals

  1. 1

    Overall diet quality measured using Nordic Nutrition Recommendation score

    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 Culturally Adapted Lifestyle Intervention for Diabetes Prevention improve adherence to dietary recommendations measured by balance index?

Emerging Evidence

Current evidence does not show a clear benefit of Culturally Adapted Lifestyle Intervention for Diabetes Prevention for Adherence to dietary recommendations measured by BALANCE Index.

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

Ranked evidence signals

  1. 1

    Adherence to dietary recommendations measured by BALANCE Index

    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
View Full Evidence

Does Culturally Adapted Lifestyle Intervention for Diabetes Prevention affect body weight?

Emerging Evidence

Current evidence does not show a clear benefit of Culturally Adapted Lifestyle Intervention for Diabetes Prevention for Body weight.

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

Ranked evidence signals

  1. 1

    Body weight

    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
View Full Evidence

Does Culturally Adapted Lifestyle Intervention for Diabetes Prevention improve glycaemia?

Emerging Evidence

Current evidence does not show a clear benefit of Culturally Adapted Lifestyle Intervention for Diabetes Prevention for Glycaemia.

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

Ranked evidence signals

  1. 1

    Glycaemia

    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
View Full Evidence
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Next steps

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Evidence topics

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HbA1c Reduction Evidence HubPhysical Activity Levels Evidence HubTreatment Adherence Evidence HubWeight Loss Evidence Hub

Explore in Evidence Explorer

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All studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Adherence to dietary recommendations measured by BALANCE IndexAll studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and Body weightAll studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and GlycaemiaAll studies on Culturally Adapted Lifestyle Intervention for Diabetes Prevention and HbA1c

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