Last updated September 9, 2026
Key finding
The low-energy diet was significantly associated with a reduced likelihood of long-acting insulin use (OR 0.60, 95% CI 0.37-0.99, P = .044).
This study analyzed the effects of a reduced-energy diet on gestational diabetes outcomes. It found that the low-energy diet was linked to less long-acting insulin use.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Extended (5–20+ y)
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 analyzed the effects of a reduced-energy diet on gestational diabetes outcomes. It found that the low-energy diet was linked to less long-acting insulin use.
Understanding dietary impacts on gestational diabetes is crucial for managing the condition effectively. The findings suggest that a reduced-energy diet could help lower insulin dependency, potentially leading to better health outcomes for both mothers and infants.
The study's sample size may limit the generalizability of the findings. The analysis focused on a specific population, which may not represent all women with gestational diabetes. Potential confounding factors were not fully addressed in the analysis.
Published in
Publication details and source links for this paper.
Laura CK, Zhaohui L, Sarah D, et al. Dietary Intervention in Gestational Diabetes: A Secondary Analysis of the DiGest Trial. The Journal of Clinical Endocrinology and Metabolism. 2026;111(7):2027-2038. doi:10.1210/clinem/dgag026
The low-energy diet was associated with a decreased likelihood of long-acting insulin use (OR 0.60, P = .044).
Maternal weight change showed no significant difference between the two diet groups (B = -0.20, P = .63).
Higher rates of neonatal jaundice were observed in infants of women with GDM and PCOS (24.4% vs 8.9%, P = .002).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Reduced-energy intervention diet (1200 kcal/day), Standard diet and Gestational weight gain, Long-acting insulin use, Neonatal jaundice.
This study contributes evidence to
Primary intervention
Reduced-energy intervention diet (1200 kcal/day)
Primary outcomes
Evidence topics
Primary intervention
Primary outcomes
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.
1
Related topics
6
Evidence pairs
332
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Evidence topic
Contributes evidence
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Primary evidence
Evidence topic
matched_outcome
Core evidence
The primary outcomes reported in this study.
Reduced-energy intervention diet (1200 kcal/day) → Gestational weight gain
Reduced-energy intervention diet (1200 kcal/day) → Gestational weight gain
Reduced-energy intervention diet (1200 kcal/day) → Long-acting insulin use
Reduced-energy intervention diet (1200 kcal/day) → Long-acting insulin use
Reduced-energy intervention diet (1200 kcal/day) → Neonatal jaundice
Reduced-energy intervention diet (1200 kcal/day) → Neonatal jaundice
Standard diet → Gestational weight gain
Standard diet → Gestational weight gain
Standard diet → Long-acting insulin use
Standard diet → Long-acting insulin use
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Reduced-energy intervention diet (1200 kcal/day) and Long-acting insulin use, Reduced-energy intervention diet (1200 kcal/day) and Neonatal jaundice.
This study contributes to the evidence on the following intervention-outcome relationships.
Diet and Nutrition
Diet and Nutrition
Curated evidence collections and hubs this study is part of.
All studies measuring Body Weight
Measures Body Weight as a key outcome.
All studies measuring Long-acting insulin use
Measures Long-acting insulin use as a key outcome.
All studies measuring Neonatal jaundice
Measures Neonatal jaundice as a key outcome.
All studies on Reduced-energy intervention diet (1200 kcal/day)
Contributes to Reduced-energy intervention diet (1200 kcal/day) evidence base.
Latest published studies
Published within the last 2 years.
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1 results
1 results
1 results
1 results
1 results
Generated from the study's connected evidence using Evidence Intelligence™.
Reduced-energy intervention diet (1200 kcal/day) appears to improve long-acting insulin use.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Long-acting insulin use
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Reduced-energy intervention diet (1200 kcal/day) appears to improve neonatal jaundice.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Neonatal jaundice
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Standard diet appears to improve long-acting insulin use.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Long-acting insulin use
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Standard diet appears to improve neonatal jaundice.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Neonatal jaundice
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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