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American Journal of Clinical Nutrition, Vol. 76, No. 1, 107-112, July 2002
© 2002 American Society for Clinical Nutrition

Original Research Communication

Food intake and meal patterns of weight-stable and weight-gaining persons1,2,3

Sharon M Pearcey and John M de Castro

1 From the Kennesaw State University, Kennesaw, GA (SMP), and Georgia State University, Atlanta (JMC).

Background: Weight gain is a result of changes in the regulation of short-term meal-to-meal intake. An investigation of the short-term intake and activity levels of weight-gaining persons may provide insight into the nature of the cues signaling weight gain.

Objective: The basic hypothesis was that the investigation of energy balance during periods of dynamic weight gain should provide clues to the regulatory differences that result in obesity.

Design: The eating behavior and activity levels of 19 weight-gaining men and women and of weight-stable, matched control subjects were compared with the use of 7-d diet diaries. Participants recorded their activity levels, everything that they ate or drank, and the environmental and psychological factors surrounding each eating episode for 7 consecutive days.

Results: The weight-gaining group ingested 1645 kJ/d more than did the weight-stable group because of a greater consumption of carbohydrate and fat and larger meal sizes.

Conclusion: The greater food intake in the weight-gaining group did not result from environmental, social, or psychological factors, suggesting that the overeating associated with weight gain might be physiologically based. 2002; 76:107–12.

Key Words: Food intake • meal patterns • weight gain • weight stability • obesity • physical activity




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