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Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
Published on: June 28, 2024
Maternal Dietary Patterns during Pregnancy Are Associated with Child Growth in the First 3 Years of Life
Chantel L Martin1, Anna Maria Siega-Riz2,3, Daniela Sotres-Alvarez4
1Department of Epidemiology and chantelmartin@unc.edu.
Insights
Maternal diet during pregnancy impacts child weight. A less healthy maternal diet pattern was linked to early childhood weight patterns, highlighting the importance of prenatal nutrition for preventing childhood obesity.
Area of Science:
- Pediatric Nutrition
- Maternal Health
- Childhood Obesity Risk Factors
Background:
- Childhood obesity is a significant public health concern in the United States.
- Identifying early-life risk factors is crucial for effective prevention strategies.
- Maternal diet during pregnancy plays a vital role in fetal development and may influence a child's risk of obesity.
Purpose of the Study:
- To prospectively investigate the association between maternal dietary patterns during pregnancy and child growth in the first three years of life.
- To analyze data from 389 mother-child pairs in the "Pregnancy, Infection, and Nutrition" study.
- To determine how specific maternal dietary habits influence infant and toddler body mass index (BMI) and weight status.
Main Methods:
- Latent class analysis (LCA) was used to identify distinct maternal dietary patterns based on food-frequency questionnaire data collected during mid-pregnancy (26-29 weeks gestation).
- Associations between identified maternal dietary patterns and child's BMI-for-age z-score and overweight/obesity status were assessed using linear and log-binomial regression models.
- Linear mixed models were employed to examine childhood growth trajectories in relation to maternal dietary patterns.
Main Results:
- Three maternal dietary patterns were identified: Pattern 1 (less healthy, high in processed foods and sweets), Pattern 2 (healthy, rich in fruits, vegetables, and whole grains), and Pattern 3 (mixed, with some healthy and less healthy components).
- Initially, Pattern 3 showed associations with higher BMI-for-age z-scores at 1 and 3 years and increased risk of overweight/obesity at 3 years compared to Pattern 2.
- After adjusting for confounding factors, these associations were attenuated, but an inverse association between Pattern 3 and birth BMI-for-age z-score was observed, suggesting a potential protective effect at birth.
Conclusions:
- A less healthy maternal dietary pattern during pregnancy was associated with specific early childhood weight patterns.
- These findings underscore the importance of maternal nutrition in prenatal development and its potential long-term impact on child weight trajectories.
- Further research with adjusted confounding factors is needed to fully elucidate the complex relationship between maternal diet and child obesity risk.
Background:
Child obesity is a major problem in the United States. Identifying early-life risk factors is necessary for prevention. Maternal diet during pregnancy is a primary source of fetal energy and might influence risk of child obesity.
Objective:
We prospectively investigated the influence of maternal dietary patterns during pregnancy on child growth in the first 3 y of life in 389 mother-child pairs from the Pregnancy, Infection, and Nutrition study.
Methods:
Dietary patterns were derived with the use of latent class analysis (LCA) based on maternal diet, collected with the use of a food-frequency questionnaire at 26-29 wk gestation. Associations between maternal dietary patterns and child body mass index (BMI)-for-age z score and overweight or obesity were assessed with the use of linear regression and log-binomial regression, respectively. We used linear mixed models to estimate childhood growth patterns in relation to maternal dietary patterns.
Results:
Three patterns were identified from LCA: 1) fruits, vegetables, refined grains, red and processed meats, pizza, french fries, sweets, salty snacks, and soft drinks (latent class 1); 2) fruits, vegetables, baked chicken, whole-wheat bread, low-fat dairy, and water (latent class 2); and 3) white bread, red and processed meats, fried chicken, french fries, and vitamin C-rich drinks (latent class 3). In crude analyses, the latent class 3 diet was associated with a higher BMI-for-age z score at 1 and 3 y of age and a higher risk of overweight or obesity at 3 y of age than was the latent class 2 diet. These associations were not detectable after adjustment for confounding factors. We observed an inverse association between the latent class 3 diet and BMI-for-age z score at birth after adjustment for confounding factors that was not evident in the crude analysis (latent class 3 compared with latent class 2-β: -0.41; 95% CI: -0.79, -0.03).
Conclusion:
In this prospective study, a less-healthy maternal dietary pattern was associated with early childhood weight patterns.
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