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Association of cow's milk intake in early childhood with adiposity and cardiometabolic risk in early adolescence.


ABSTRACT:

Background

Prior studies have provided conflicting evidence regarding associations of pediatric milk consumption with subsequent adiposity.

Objectives

We aimed to estimate associations of the consumption frequency and fat content of early childhood milk intake with early adolescent adiposity and cardiometabolic risk.

Methods

We analyzed data collected prospectively from 796 children in Project Viva, a Boston-area prebirth cohort. Parents reported the frequency (times/day) and fat content [higher-fat: whole (3.25%) or 2% milk; lower-fat: 1% or skim milk] of cow's milk consumed in early childhood (mean, 3.2 years) via food-frequency questionnaires. We measured adiposity and cardiometabolic markers in early adolescence (mean, 13.2 years) and conducted multivariable regressions to assess associations adjusted for baseline parental and child sociodemographic, anthropometric, and dietary factors.

Results

In early childhood, mean milk intake was 2.3 times/day (SD, 1.2 times/day), and 63% of children drank primarily higher-fat milk. The early childhood BMI z-score (BMIz) was inversely associated with the fat content of milk consumed in early childhood. After adjustment for baseline parent and child factors, early childhood intake of higher-fat compared with lower-fat milk was associated with lower adiposity; however, the 95% CIs for most adiposity outcomes-except for the odds of overweight or obesity (OR, 0.60; 95% CI, 0.38-0.93)-crossed the null after adjustment for the baseline child BMIz and BMIz change between ages 2 and 3 years. Early childhood consumption of higher-fat milk (compared with lower-fat milk) was not associated with adverse cardiometabolic outcomes. The frequency of cow's milk consumption in early childhood was not associated with adiposity or cardiometabolic risk in early adolescence.

Conclusions

Consumption of higher-fat cow's milk in early childhood was not associated with increased adiposity or adverse cardiometabolic health over a decade later. Our findings do not support current recommendations to consume lower-fat milk to reduce the risk of later obesity and adverse cardiometabolic outcomes. This trial was registered at clinicaltrials.gov as NCT02820402.

SUBMITTER: McGovern C 

PROVIDER: S-EPMC9348987 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Association of cow's milk intake in early childhood with adiposity and cardiometabolic risk in early adolescence.

McGovern Caitriona C   Rifas-Shiman Sheryl L SL   Switkowski Karen M KM   Woo Baidal Jennifer A JA   Lightdale Jenifer R JR   Hivert Marie-France MF   Oken Emily E   Aris Izzuddin M IM  

The American journal of clinical nutrition 20220801 2


<h4>Background</h4>Prior studies have provided conflicting evidence regarding associations of pediatric milk consumption with subsequent adiposity.<h4>Objectives</h4>We aimed to estimate associations of the consumption frequency and fat content of early childhood milk intake with early adolescent adiposity and cardiometabolic risk.<h4>Methods</h4>We analyzed data collected prospectively from 796 children in Project Viva, a Boston-area prebirth cohort. Parents reported the frequency (times/day) a  ...[more]

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