Genetic Risk, Parental Feeding Practices, and Appetitive Traits in Early Life

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

330 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-18

Study Completion Date

2029-08-31

Brief Summary

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The preschool years (2-5 years of age) is a critical timeframe to shape the lifetime risk of obesity. While the causes of obesity are complex, appetitive traits related to overeating, such as high food approach and low food avoidance, are robustly associated with a greater BMI among children. Some children are genetically pre-disposed to expressing obesogenic appetitive traits, and those traits may mediate a genetic risk for obesity. Separately, parental feeding practices are emerging as an important, yet modifiable, influence on children's obesity risk. Coercive control feeding practices, such as strictly limiting a child's intake of highly palatable foods (restriction) and using food to control children's negative emotions (emotional feeding), are believed to be detrimental for young children because they impede self-regulatory skills around eating and may increase the saliency of highly palatable foods. The goal for this project is to disentangle the inter-relationships between coercive control feeding practices, children's obesogenic appetitive traits, and children's dietary intake across the preschool years to understand how coercive control feeding practices ultimately impact children's adiposity gain over time. Importantly, the investigators aim to understand how those effects differ based on children's underlying genetic risk for obesity. The investigators hypothesize that parents will respond to children's obesogenic appetitive traits by exhibiting more coercive control feeding practices (restriction, emotional feeding), which in turn, will promote future increase in obesogenic appetitive traits and overconsumption, leading to excess adiposity gain among children. Importantly, the investigators hypothesize children with a high genetic risk for obesity will be most susceptible to the negative effects of coercive control feeding practices because food is highly salient for them. The investigators will test the hypotheses among a cohort of children aged 2.5 years old using a longitudinal study design with repeated assessments every 6 months until children are 5 years old. If successful, study findings may be leveraged to develop tailored strategies to help parents support healthy eating behaviors among their young children that consider the heterogeneity in obesogenic appetitive traits among young children due to genetic risk factors.

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Detailed Description

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The goal for this project is to disentangle the inter-relationships between coercive control feeding practices, children's obesogenic appetitive traits, and children's dietary intake across the preschool years to understand how coercive control feeding practices ultimately impact children's adiposity gain over time.

The investigators will assess children's genetic risk for obesity via candidate single-nucleotide polymorphisms (SNPs) and a polygenic risk score. Importantly, this novel approach expands upon previous research by including the investigator's lab's proven, objective paradigm to measure children's food approach and overconsumption. Specifically, the investigators will use eye-tracking to measure children's attentional bias to food, an objective metric of food approach. The investigators also include an eating in the absence of hunger paradigm to objectively measure children's overconsumption.

The investigators will test this hypotheses among a cohort of children aged 2.5 years old using a longitudinal study design with repeated assessments every 6 months until children are 5 years old.

Conditions

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Childhood Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Food Cues

Attentional bias to Food cues experimental measurement

Group Type ACTIVE_COMPARATOR

Attentional bias to food cues

Intervention Type BEHAVIORAL

Measurement of the amount of attention given to food cues

Control Cues

Attentional bias to food cues control measurement

Group Type ACTIVE_COMPARATOR

Attentional bias to food cues

Intervention Type BEHAVIORAL

Measurement of the amount of attention given to food cues

Interventions

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Attentional bias to food cues

Measurement of the amount of attention given to food cues

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* parent must be ≥18 years old, have primary custody of their child for ≥75% of the month, comprehend verbal and written English and not plan to move out of Vermont or New Hampshire during the study timeframe.
* Children must be ≥2.25 and ≤2.99 years old at first visit and have normal or corrected-to-normal vision to enable eye tracking.

Exclusion Criteria

* Children with any relevant food allergies or dietary restrictions, taking medication or with a medical condition that affects appetite or attention, or with a relative enrolled in the study will be excluded.

Minimum Eligible Age

27 Months

Maximum Eligible Age

72 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes