RESTING METABOLIC-RATE AND DIET-INDUCED THERMOGENESIS IN RESTRAINED AND UNRESTRAINED EATERS

Objective: The hypothesis was studied whether restrained eaters had re duced resting metabolic rate (RMR) and diet-induced thermogenesis (DIT ) and whether the effect was caused by weight cycling. Method: 12 rest rained and 12 unrestrained eaters (classified by the Three Factor Eati ng Questionnaire) were studied with regard to RMR an DIT by indirect c alorimetry using a ventilated hood system. In a second study 12 weight cycling restrained eaters and 12 weight stable restrained eaters were compared. Results: Restrained eaters had significantly lower RMR than unrestrained eaters. No difference in DIT was found. Weight cycling a nd no weight cycling restrained eaters did not differ with regard to R MR and DIT. Discussion: These data indicate that restrained eating but not weight cycling significantly reduces RMR. (C) 1996 by John Wiley & Sons, Inc.