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Modeling Alcohol Consumption in Rodents Using Two-Bottle Choice Home Cage Drinking and Microstructural Analysis

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Thirst-drinking, hunger-eating; tight coupling?

Fiona McKiernan¹, James H Hollis, George P McCabe

¹Department of Foods and Nutrition, Purdue University, 700 W State St, West Lafayette, IN 47907-2059, USA.

Journal of the American Dietetic Association

|March 3, 2009

Summary

This summary is machine-generated.

Appetite sensations like thirst and hunger may no longer reliably predict eating and drinking behaviors, especially concerning energy-dense beverages. This study found weak correlations between these feelings and actual intake in adults.

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Area of Science:

Human physiology
Nutritional science
Behavioral science

Background:

Historically, thirst and hunger motivated drinking and feeding.
Increasing consumption of energy-yielding beverages and energy-diluted foods may alter these motivations.
The predictive value of appetitive sensations on ingestive behavior is questioned.

Purpose of the Study:

To explore the relationships between thirst, hunger, eating, and drinking patterns in adults.
To investigate if appetitive sensations predict the intake of energy-yielding beverages and overall ingestive behavior.

Main Methods:

Observational, within-subject study design in 50 weight-stable adults.
Collected 7-day, 24-hour dietary recalls.
Recorded hourly appetite ratings and correlated them with hourly energy and fluid intake.

Main Results:

Thirst ratings showed no correlation with drinking or energy intake.
Hunger ratings showed a moderate correlation with energy intake but not drinking.
Energy-yielding beverages comprised most fluid intake, irrespective of meal events.

Conclusions:

The study found no significant association between thirst or hunger and the ingestion of energy-yielding beverages.
Weak associations were observed between hunger and eating, and thirst and drinking.
Appetitive sensations may have limited predictive power for current ingestive behaviors.