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Randomized Controlled Trial
. 2025 Aug;81(2):355-366.
doi: 10.1002/jpn3.70098. Epub 2025 Jun 9.

Maternal diet and gestational diabetes mellitus modestly influence children's growth during their first 24 months

Affiliations
Randomized Controlled Trial

Maternal diet and gestational diabetes mellitus modestly influence children's growth during their first 24 months

Lotta Saros et al. J Pediatr Gastroenterol Nutr. 2025 Aug.

Abstract

Objective: To evaluate whether diet and gestational diabetes mellitus (GDM) during pregnancy influence children's growth during their first 24 months.

Methods: Growth data of children (n = 378) of women with overweight/obesity were obtained from clinic records (birth, 3, 6, 12 and 24 months), and variables (standard deviation scores (SDS) or percentages) were calculated based on Finnish growth charts. Body composition was measured by air displacement plethysmography (n = 73, 24 months). Diet was assessed (diet quality index, nutrient intakes and diet inflammatory index (DII®)) in early and late pregnancy. GDM was determined by an oral glucose tolerance test.

Results: A good dietary quality in early pregnancy associated positively with the children's height at each time point (adj. mean difference range = 0.28-0.30 SDS, p < 0.05) and head circumference at 12 and 24 months (adj. mean difference range = 0.38-0.42 SDS, p < 0.05). A good dietary quality in late pregnancy associated with a lower fat mass in children (adj. mean difference = -0.69, p < 0.05). A higher DII was correlated with a higher weight at 24 months but a reduced height at each time point (adj. p < 0.05). GDM associated negatively with the children's head circumference at birth and 6 months (adj. mean difference range = -0.43 to [-0.22] SDS, p < 0.05).

Conclusions: Consuming a good quality diet during pregnancy associated with a greater infantile height and head circumference but a lower adiposity in 2-year-old children. GDM may lead to a slightly smaller head circumference in early infancy. Mothers with overweight or obesity could support their children's growth by consuming a good quality diet, with low inflammatory potential during pregnancy.

Trial registration: ClinicalTrials.gov Identifier: NCT01922791, 14 August 2013.

Keywords: adiposity; head circumference; height; maternal diabetes; nutrition; offspring.

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Conflict of interest statement

Dr. James R. Hébert discloses that he owns controlling interest in Connecting Health Innovations LLC (CHI), a company that has licensed the right to his invention of the dietary inflammatory index (DII®) from the University of South Carolina to develop computer and smartphone applications for patient counselling and dietary intervention in clinical settings. CHI owns exclusive rights to the energy‐adjusted DII (E‐DII™). The subject matter of this paper has no direct bearing on that work, nor has any CHI‐related activity exerted any influence on this project. The remaining authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Flow chart of the present study. At least one available growth measure was available from 378 children during the study period (24 months).

References

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