Research Summary

Analyzed using Evidence Intelligence™

Greenhabit app improves diabetes outcomes in adults

Key finding

Mean change in the intervention group [n=50] -0.4%, P <.001 vs -0.3% in the control group [n=53], P =.001.

This study evaluated the Greenhabit mobile app for enhancing self-management in type 2 diabetes. Results showed significant improvements in several health metrics compared to standard care.

Evidence strength

Moderate confidence

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Some Concerns bias

Last updated July 8, 2026

Quick read

Study at a glance

The essential study design details in one scan.

Population

Young Adult (19–39), Middle Aged (40-64), Male, Female, Asia-Pacific (APAC), with T2 Diabetes

Intervention

Greenhabit mobile app

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Primary outcome

HbA1c

Comparator

Standard care with dietary advice

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 Greenhabit mobile app for enhancing self-management in type 2 diabetes. Results showed significant improvements in several health metrics compared to standard care.

Clinical relevance

The findings highlight the potential of digital health tools like the Greenhabit app to support self-management in type 2 diabetes. Improved health metrics such as HbA1c and blood pressure can lead to better long-term outcomes, reducing the risk of complications associated with diabetes.

Keep in mind

The study's sample size was relatively small, which may limit generalizability. Results may not apply to all demographics of type 2 diabetes patients. The long-term sustainability of the app's benefits was not assessed.

Published in

Journal Reference

Publication details and source links for this paper.

Amaryllis M, Loai A, Jinal M, et al. Enhancing self-management in health care through digital tools: A randomized controlled trial of the Greenhabit mobile app for type 2 diabetes. Journal of Medical Internet Research. 2025;27:e58319. doi:10.2196/58319

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Main Effects

HbA1c decreased by -0.4% in the intervention group (P <.001) compared to -0.3% in the control group (P =.001).

Fasting plasma glucose decreased by -5.3 mg/dL in the intervention group (P =.01).

Systolic blood pressure decreased by -4.5 mmHg (P =.049).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Mobile app for diabetes self-management and BMI, Body weight, Diabetes social support, and 9 more.

This study contributes evidence to

Intervention

Mobile app for diabetes self-management

Outcome

BMI

Evidence topic

Weight Loss

Primary intervention

Mobile app for diabetes self-management

Primary outcomes

BMI
Body weight
Diabetes social support

Evidence topics

Weight Loss Glycemic Control HbA1c Reduction

Primary intervention

Mobile app for diabetes self-management

Primary outcomes

BMI Body weight Diabetes social support

Evidence relationships

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

Evidence pairs

Relationships

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

Why it is useful

Contributes to 12 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

Mobile app for diabetes self-management → Waist circumference

Evidence profile

StrongDecreaseWeight & Anthropometrics

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Evidence Suggest

HbA1c improved by -0.4% in the app group, indicating better glycemic control.
Fasting plasma glucose decreased by -5.3 mg/dL, showing effective blood sugar management.
Systolic blood pressure reduced by -4.5 mmHg, suggesting cardiovascular benefits.

Who this applies to

Adults diagnosed with type 2 diabetes.
Individuals seeking to improve their diabetes management through digital tools.

Keep in Mind

The findings are based on a specific population and may not be applicable to all patients.
The study did not evaluate the long-term effects of the app beyond the trial period.
Further research is needed to confirm these results in larger, more diverse populations.

Between the Lines

The study's sample size was relatively small, which may limit generalizability.
Results may not apply to all demographics of type 2 diabetes patients.
The long-term sustainability of the app's benefits was not assessed.

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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 Mobile app for diabetes self-management and HbA1c, Mobile app for diabetes self-management and Body Mass Index.

Related evidence relationships

Explore in Evidence Archive

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

Mobile app for diabetes self-managementHbA1c

Behavioral & Lifestyle

3 studies

Detailed evidence

Mobile app for diabetes self-managementBody Mass Index

Behavioral & Lifestyle

1 studies

Detailed evidence

Mobile app for diabetes self-managementBody Weight

Behavioral & Lifestyle

1 studies

Detailed evidence

Included in these evidence collections

Curated evidence collections and hubs this study is part of.

HbA1c Evidence Hub

All studies measuring HbA1c

3 studies

outcome_hub

Measures HbA1c as a key outcome.

Mobile app for diabetes self-management Evidence Hub

All studies on Mobile app for diabetes self-management

3 studies

intervention_hub

Contributes to Mobile app for diabetes self-management evidence base.

Body Mass Index Evidence Hub

All studies measuring Body Mass Index

1 studies

outcome_hub

Measures Body Mass 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.

Recent Diabetes Research

Latest published studies

recency_collection

Published within the last 2 years.

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

Does Mobile app for diabetes self-management improve HbA1c?

Emerging Evidence

Mobile app for diabetes self-management may improve HbA1c.

ConsensusScore™: Results are generally consistent across studies.

Ranked evidence signals

1
HbA1c
EvidenceScore™ Emerging | EvidenceScore™ 53.9 | moderate positive | ConsensusScore™ Generally 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.

View Full Evidence

Does Mobile app for diabetes self-management affect bmi?

Emerging Evidence

Mobile app for diabetes self-management appears to improve BMI.

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

Ranked evidence signals

1
BMI
EvidenceScore™ Emerging | EvidenceScore™ 51.7 | strong positive | ConsensusScore™ 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.

View Full Evidence

Does Mobile app for diabetes self-management affect body weight?

Emerging Evidence

Mobile app for diabetes self-management appears to improve Body weight.

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

Ranked evidence signals

1
Body weight
EvidenceScore™ Emerging | EvidenceScore™ 51.7 | strong positive | ConsensusScore™ 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.

View Full Evidence

Does Mobile app for diabetes self-management improve diabetes social support?

Emerging Evidence

Mobile app for diabetes self-management appears to improve Diabetes social support.

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

Ranked evidence signals

1
Diabetes social support
EvidenceScore™ Emerging | EvidenceScore™ 51.7 | strong positive | ConsensusScore™ 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.

View Full Evidence

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Next steps

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Evidence topics

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Weight Loss Evidence Hub Glycemic Control Evidence Hub HbA1c Reduction Evidence Hub

Explore in archive

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All studies on Mobile app for diabetes self-management and HbA1c All studies on Mobile app for diabetes self-management and Fasting Plasma Glucose (FPG)All studies on Mobile app for diabetes self-management and BMI All studies on Mobile app for diabetes self-management and Body weight

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