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A comparison of bite size and BMI in a cafeteria setting
Ryan S Mattfeld1, Eric R Muth2, Adam Hoover1
1The Holcombe Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, United States.
Physiology & Behavior
|September 12, 2017
Summary
Obese individuals take larger bites of food and drink compared to normal and overweight individuals. Bite size increases with higher body mass index (BMI), particularly in obese participants.
Area of Science:
- Nutrition Science
- Human Physiology
- Behavioral Science
Background:
- Understanding factors influencing eating behaviors is crucial for public health.
- Body Mass Index (BMI) is a key indicator of body fatness and associated health risks.
- Eating behaviors, such as bite size, may be influenced by weight status.
Purpose of the Study:
- To investigate the relationship between Body Mass Index (BMI) and bite size.
- To determine if weight status (normal, overweight, obese) affects bite size.
- To analyze bite size differences for food and drink consumption.
Main Methods:
- Two hundred seventy-one participants consumed meals in a cafeteria setting.
- Bite weights were measured using an embedded table scale.
- Statistical analyses included ANOVAs, regressions, and a general linear model for quartile analysis.
Main Results:
- Obese participants took significantly larger bites than normal and overweight participants.
- Average bite size increased by 0.20g per unit increase in BMI.
- Obese individuals showed a greater increase in bite size in higher quartiles.
Conclusions:
- Higher BMI, particularly obesity, is associated with larger bite sizes.
- This effect was observed for both food and drink consumption.
- Uncontrolled factors may contribute to the observed relationship between BMI and bite size.
