Metabolic Patterns of a Group of Overweight, Underweight and Average Weight Women

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Abstract
Metabolic patterns of a group of 7 overweight, 7 underweight and 7 average weight women were investigated at fasting and following two test meals of varying carbohydrate and fat composition. Respiratory quotients, hourly energy expenditures and hourly urinary nitrogen excretions were determined simultaneously with blood glucose, blood pyruvic acid, serum total lipids and serum chylomicron concentrations at fasting and at intervals for 5 hours. Although individual differences in responses were observed among all groups, certain metabolic patterns associated with the overweight and underweight subjects in this investigation were significantly greater than variations among individuals within the groups. The overweight women as a group appeared to exhibit a delay in utilization of carbohydrate in the test meals compared to the average weight and underweight women. There were some indications of a greater preference for carbohydrate in metabolism by the underweight than by the average weight women.