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Research Summary
Analyzed using Evidence Intelligence™

Weight management program shows little effect on HbA1c but aids weight loss.

Powered by the Dediabetes Evidence Intelligence™ framework

Last updated July 17, 2026

Key finding

difference: −0.84 [95% CI −2.99, 1.31] mmol/mol, p =0.44

A behavioral weight management program combined with dietary counseling did not improve HbA1c levels in participants with type 2 diabetes over 12 months.

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

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

A behavioral weight management program combined with dietary counseling did not improve HbA1c levels in participants with type 2 diabetes over 12 months.

Clinical relevance

These findings highlight the potential benefits of behavioral weight management programs in achieving weight loss and diabetes remission, which are crucial for managing type 2 diabetes. However, the lack of impact on HbA1c levels suggests that additional strategies may be needed to improve glycemic control in this population.

Keep in mind

The study may have limited generalizability due to specific inclusion criteria. No significant change in body weight was reported for the standard care group. The intervention's long-term effects beyond 12 months remain unclear.

Published in

Journal Reference

Publication details and source links for this paper.

Julia M, Penny B, Francesco F, et al. A commercial behavioural weight management programme combined with remote dietary counselling after diagnosis of type 2 diabetes did not improve HbA 1c up to 12 months post intervention in this trial. Diabetologia. 2025;68(5):969-980. doi:10.1007/s00125-024-06355-6

View DOIView on PubMedView on PMC

Main Effects

No significant change in HbA1c levels at 12 months (difference: −0.84 mmol/mol, p = 0.44).

Weight loss at 6 months was significant in the intervention group (−1.77 kg).

Higher likelihood of diabetes remission at 12 months in the intervention group (RR 2.53).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to DSMES, Lifestyle intervention for prediabetes and Body weight, Diabetes remission, HbA1c.

This study contributes evidence to

Intervention

DSMES

Outcome

Body weight

Evidence topic

HbA1c Reduction

Primary intervention

DSMES

Primary outcomes

  • Body weight
  • Diabetes remission
  • HbA1c

Evidence topics

HbA1c ReductionWeight LossDiabetes RemissionDiabetes Self-Management Education and Support

Primary intervention

DSMES

Primary outcomes

Body weightDiabetes remissionHbA1c

Evidence relationships

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

5
Evidence pairs
5
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

5

Evidence pairs

1106

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 5 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

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Primary evidence

Evidence relationship

Diabetes Self-Management Education and Support (DSMES) Programs and HbA1c

Related evidence

Evidence relationship

Diabetes Self-Management Education and Support (DSMES) Programs and Body Weight

Save evidence

Evidence relationship

Diabetes Self-Management Education and Support (DSMES) Programs and Diabetes Remission

Save evidence

Core evidence

Study findings

The primary outcomes reported in this study.

Body weight

DSMES → Body weight

DSMES → Body weight

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

Diabetes remission

DSMES → Diabetes remission

DSMES → Diabetes remission

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

HbA1c

DSMES → HbA1c

DSMES → HbA1c

Evidence Intelligence™
EvidenceScore™
86
Strong
ImpactScore™
69
Positive
ConsistencyScore™
58
generally_consistent
Supporting studies: Based on 12 studies
Add to Evidence Tracker

Body weight

Lifestyle intervention for prediabetes → Body weight

Lifestyle intervention for prediabetes → Body weight

Evidence Intelligence™
EvidenceScore™
84
Strong
ImpactScore™
75
Positive
ConsistencyScore™
83
consistent
Supporting studies: Based on 12 studies
Add to Evidence Tracker

HbA1c

Lifestyle intervention for prediabetes → HbA1c

Lifestyle intervention for prediabetes → HbA1c

Evidence Intelligence™
EvidenceScore™
87
Strong
ImpactScore™
85
Very Positive
ConsistencyScore™
82
consistent
Supporting studies: Based on 17 studies
Add to Evidence Tracker

Evidence Library

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evidence suggest

Evidence Suggest

  • Weight loss was significant at both 6 months (−1.77 kg) and 12 months (−1.38 kg).
  • Participants in the intervention group had a higher likelihood of diabetes remission (RR 2.53 at 12 months).
  • No intervention effect on HbA1c levels was found (difference: −0.84 mmol/mol).
who this applies

Who this applies to

  • Adults diagnosed with type 2 diabetes.
  • Individuals seeking weight management strategies post-diagnosis.
keep in mind

Keep in Mind

  • The study's findings may not apply to all populations with type 2 diabetes.
  • The intervention's effectiveness was limited to weight loss and remission, not glycemic control.
  • Further research is needed to explore long-term outcomes and additional interventions.
between the lines

Between the Lines

  • The study may have limited generalizability due to specific inclusion criteria.
  • No significant change in body weight was reported for the standard care group.
  • The intervention's long-term effects beyond 12 months remain unclear.

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 Lifestyle intervention for prediabetes and HbA1c, Diabetes Self-Management Education and Support (DSMES) Programs and HbA1c.

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.

HbA1c Evidence Hub

All studies measuring HbA1c

17 studies
outcome_hub

Measures HbA1c as a key outcome.

Lifestyle intervention for prediabetes Evidence Hub

All studies on Lifestyle intervention for prediabetes

17 studies
intervention_hub

Contributes to Lifestyle intervention for prediabetes evidence base.

Body Weight Evidence Hub

All studies measuring Body Weight

12 studies
outcome_hub

Measures Body Weight as a key outcome.

Diabetes Self-Management Education and Support (DSMES) Programs Evidence Hub

All studies on Diabetes Self-Management Education and Support (DSMES) Programs

12 studies
intervention_hub

Contributes to Diabetes Self-Management Education and Support (DSMES) Programs evidence base.

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™.

Do Diabetes Self-Management Education and Support (DSMES) Programs lower HbA1c?

Strong Evidence

Diabetes Self-Management Education and Support (DSMES) Programs may lower HbA1c.

ConsistencyScore™: Results are generally consistent across studies.

Ranked evidence signals

  1. 1

    HbA1c

    EvidenceScore™ Strong | EvidenceScore™ 85.7 | moderate positive | ConsistencyScore™ Generally Consistent | 1 study

Why this answer: This answer is based on 44 supporting studies with generally consistent results and a positive effect signal.

44 supporting studies
View Full Evidence

Do Diabetes Self-Management Education and Support (DSMES) Programs affect body weight?

Strong Evidence

Diabetes Self-Management Education and Support (DSMES) Programs appear to affect body weight.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    Body weight

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

Why this answer: This answer is based on 14 supporting studies with consistent results and a positive effect signal.

14 supporting studies
View Full Evidence

Do Diabetes Self-Management Education and Support (DSMES) Programs improve diabetes remission?

Emerging Evidence

Diabetes Self-Management Education and Support (DSMES) Programs appear to improve diabetes remission.

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

Ranked evidence signals

  1. 1

    Diabetes remission

    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.
1 supporting study
View Full Evidence

Does Lifestyle intervention for prediabetes lower HbA1c?

Strong Evidence

Lifestyle intervention for prediabetes appears to lower HbA1c.

ConsistencyScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    HbA1c

    EvidenceScore™ Strong | EvidenceScore™ 87.4 | 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.
1 supporting study
View Full Evidence
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Next steps

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Evidence topics

Follow the topics this study contributes to.

HbA1c Reduction Evidence HubWeight Loss Evidence HubDiabetes Remission Evidence HubDiabetes Self-Management Education and Support Evidence Hub

Explore in Evidence Explorer

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All studies on Lifestyle intervention for prediabetes and HbA1cAll studies on DSMES and HbA1cAll studies on Lifestyle intervention for prediabetes and Body weightAll studies on DSMES and Body weight

Related research

Read related research summaries.

Intensive lifestyle intervention may improve type 2 diabetes remission ratesHealthy lifestyle reduces diabetes risk in high genetic risk womenScalable diabetes education improves care coordinationCommunity lifestyle programme improves multiple diabetes risk factors in adults with prediabetesEngagement in a prediabetes education programme is linked to lower type 2 diabetes risk

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