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Prenatal Diet that Meets Dietary Guidelines May Reduce Risk of Obesity Later: JAMA

By - Dr. Bhumika Maikhuri
Published On 2024-11-26 02:30 GMT   |   Update On 2024-11-26 07:09 GMT
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Expectant mothers who maintain a diet that meets USDA dietary guidelines during pregnancy may be more likely to have infants with healthy birthweights, steadier growth patterns, and potentially a reduced risk of obesity later in childhood, according to a new study published in JAMA Network Open.
The research, involving more than 2,800 mother-child pairs across eight ECHO Cohort Study Sites, suggests that following a healthy
prenatal diet in line with the USDA Dietary Guidelines for Americans could have long-term positive effects on infant growth up to 24 months.
This study found that eating a healthy diet during pregnancy was linked with a lower chance of extremely rapid infant growth,” said Assiamira Ferrara, MD, PhD, of Kaiser Permanente Northern California Division of Research. Dr. Ferrara noted that rapid growth from birth to 24 months is a strong predictor of obesity later in life.
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The study used two dietary measures—the Healthy Eating Index and the Empirical Dietary Inflammatory Pattern —to look at maternal eating patterns. The Healthy Eating Index measures overall diet quality. The Empirical Dietary Inflammatory Pattern score measures how likely a diet is to cause inflammation in the body. Diets with high Empirical Dietary Inflammatory Pattern scores have been linked to increased levels of inflammation.
Key findings from the research showed that:
Higher Healthy Eating Index scores, reflecting healthier diets, were associated with a 12% reduced chance of infants being born large for gestational age, alongside lower rates of rapid growth up to 6 and 24 months.
Lower Empirical Dietary Inflammatory Pattern scores, indicating diets with reduced inflammatory potential, were associated with a 24% higher chance of large for gestational age and had mixed effects on growth: slower from birth to 6 months but faster growth between birth and 12 months. This association was less clear and warrants further study.
To assess rapid growth, the study relied on a measurement called the weight-for-length z-score a tool used to track an infant's growth. It compares a baby’s weight to its length and tells you how far a baby's weight is from the average weight of babies of the same length. Rapid growth was defined as a significant increase in weight-for-length z-score scores from birth to 6, 12, or 24 months. Babies whose weight-for-length z-score scores jumped more than expected moved to a higher percentile on the growth chart, meaning they weighed more relative to their peers of the same length.
Reference: Hedderson MM, Schuh HB, Knapp EA, et al. Prenatal Diet and Infant Growth From Birth to Age 24 Months. JAMA Netw Open. 2024;7(11):e2445771. doi:10.1001/jamanetworkopen.2024.45771
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Article Source : JAMA Network Open

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Dr. Bhumika Maikhuri

Dr Bhumika Maikhuri is an orthodontist with 2 years of clinical experience. She is also working as a medical writer and anchor at Medical Dialogues. She has completed her BDS from Dr D.Y. Patil Medical College and Hospital and MDS from Kalinga Institute of Dental Sciences. She has a few publications and patents to her credit. Her diverse background in clinical dentistry and academic research uniquely positions her to contribute meaningfully to our team.

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