Última actualización 25 de agosto de 2026
Key finding
Neonatal birthweight was lower in the intervention than in the usual care group (absolute effect size −133 g, 95% CI −231 to −35, p = 0.008).
This study evaluated the impact of intensified counseling on diet and activity to prevent gestational diabetes. Results indicated no significant difference in GDM incidence but showed beneficial changes in dietary habits.
Quick read
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
A plain-language read of the study’s main message and where it applies.
Study focus
This study evaluated the impact of intensified counseling on diet and activity to prevent gestational diabetes. Results indicated no significant difference in GDM incidence but showed beneficial changes in dietary habits.
These findings highlight the potential of dietary and lifestyle interventions during pregnancy to influence neonatal outcomes, even if they do not significantly reduce the incidence of gestational diabetes. Improved dietary habits can lead to healthier pregnancies and better outcomes for newborns, which is crucial for maternal and child health.
The study did not find a significant reduction in gestational diabetes incidence. Results may not be generalizable beyond the study population. The sample size may limit the power to detect smaller effect sizes.
Published in
Publication details and source links for this paper.
Riitta L, Tarja IK, Minna A, et al. Counseling on Diet and Activity to Prevent Gestational Diabetes. PLoS Medicine. 2011;8(5):e1001036. doi:10.1371/journal.pmed.1001036
The incidence of gestational diabetes mellitus was 15.8% in the intervention group versus 12.4% in the usual care group (p = 0.36).
Neonatal birthweight was significantly lower in the intervention group by 133 grams (p = 0.008).
The proportion of large-for-gestational-age newborns was lower in the intervention group at 12.1% compared to 19.7% in usual care (p = 0.042).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Exercise therapy and Daily intake of saturated fat in grams, Fiber intake, Gestational diabetes mellitus incidence, and 7 more.
This study contributes evidence to
Primary intervention
Exercise therapy
Primary outcomes
Primary intervention
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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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.
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Related topics
10
Evidence pairs
507
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Contributes evidence
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Contributes evidence
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Contributes evidence
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Contributes evidence
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Evidencia principal
Tema de evidencia
matched_intervention_and_outcome
Evidencia relacionada
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Core evidence
The primary outcomes reported in this study.
Exercise therapy → Daily intake of saturated fat in grams
Exercise therapy → Daily intake of saturated fat in grams
Exercise therapy → Gestational diabetes mellitus incidence
Exercise therapy → Gestational diabetes mellitus incidence
Exercise therapy → Gestational weight gain
Exercise therapy → Gestational weight gain
Exercise therapy → Need for insulin treatment during pregnancy
Exercise therapy → Need for insulin treatment during pregnancy
Exercise therapy → Neonatal birth weight
Exercise therapy → Neonatal birth weight
Exercise therapy → Physical activity level (MET-minutes per week)
Exercise therapy → Physical activity level (MET-minutes per week)
Exercise therapy → Polyunsaturated fatty acid intake
Exercise therapy → Polyunsaturated fatty acid intake
Exercise therapy → Proportion of large-for-gestational-age newborns
Exercise therapy → Proportion of large-for-gestational-age newborns
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Exercise therapy and Fiber intake, Exercise therapy and Diabetes Incidence and Prevention.
This study contributes to the evidence on the following intervention-outcome relationships.
Physical Activity
Physical Activity
Physical Activity
Curated evidence collections and hubs this study is part of.
All studies measuring Diabetes Incidence and Prevention
Measures Diabetes Incidence and Prevention as a key outcome.
All studies on Exercise therapy
Contributes to Exercise therapy evidence base.
All studies measuring Fiber intake
Measures Fiber intake as a key outcome.
All studies measuring Neonatal birth weight
Measures Neonatal birth weight as a key outcome.
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1 results
1 results
1 results
1 results
1 results
Generated from the study's connected evidence using Evidence Intelligence™.
Exercise therapy appears to improve Daily intake of saturated fat in grams.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Daily intake of saturated fat in grams
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Exercise therapy appears to improve Fiber intake.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Fiber intake
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Exercise therapy appears to improve Neonatal birth weight.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Neonatal birth weight
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Exercise therapy appears to improve Polyunsaturated fatty acid intake.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Polyunsaturated fatty acid intake
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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