American Journal of Clinical Nutrition, Vol 55, 641-644, Copyright © 1992 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Weight cycling and cardiovascular risk factors in obese men and women

RW Jeffery, RR Wing and SA French
University of Minnesota School of Public Health, Division of Epidemiology, Minneapolis 55454-1015.

This study examined the relationship between weight cycling and cardiovascular risk factors in 101 obese men and 101 obese women. Weight cycling was defined in three ways by retrospective self-report: 1) number of previous weight losses of greater than or equal to 4.5 kg, 2) total weight lost in prior weight-loss attempts, and 3) the difference between highest and lowest weight as an adult. Cardiovascular risk factors included blood pressure, total and high- density-lipoprotein cholesterol, triglycerides, fasting and 2-h glucose values, waist-to-hip ratio, and percent of dietary calories from fat. Results did not support the hypothesis that weight cycling increased cardiovascular risk factors in either men or women. Of 88 associations examined, only 7 showed differences with P less than 0.05 and of these, 6 were opposite in direction to that hypothesized. We conclude that warnings about the health hazards of repeated dieting may be premature.

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