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Weight Fluctuation increases CVD risk

Normal-weight individuals who experience weight cycling in which their body mass index fluctuates during a 2-year period are at an increased risk of cardiovascular disease. This was the finding of a study presented at the Cardiovascular Disease Epidemiology and Prevention and Nutrition, Physical Activity, and Metabolism Conference held in San Francisco, California.

Lead investigator Dr. Molly Waring of the University of Massachusetts Medical Center in Worcester, Massachusetts, told heartwire that compared with people who were of normal weight or who have steady weight, normal-weight individuals whose weight went up and down during the 2-year period had a 50 percent higher risk of cardiovascular disease and a 40 percent higher risk of cardiovascular death.

Comparatively, overweight individuals who maintained a constant weight and those whose weight cycled during middle age had similar risks of cardiovascular, cerebrovascular, and coronary heart disease events. In addition, they had similar risks of cardiovascular and overall mortality.

The authors stressed that this study emphasized the importance of keeping the weight off among normal-weight individuals, because even periods of normal weight won’t provide protection against cardiovascular disease events.

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