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Weight swings may be risky for overweight heart patients

Fluctuating Weight He_Sist.jpg
FILE - In this Jan. 20, 2010, file photo, a waist is measured during an obesity prevention study in Chicago. A study published Wednesday, April 5, 2017 in the New England Journal of Medicine suggests gaining and losing weight repeatedly may be dangerous for overweight heart patients. (AP Photo/M. Spencer Green, File)

CHICAGO (AP) - A new study says losing and regaining weight repeatedly may be dangerous for overweight heart patients.

Heart attacks, strokes and death were more common in patients whose weight changed the most over four years.

For some patients, weight changes might have reflected yo-yo dieting, which some previous studies have suggested may be unhealthy for people without heart problems. That means a hefty but stable weight might be healthier than losing but repeatedly regaining extra pounds.

But big weight fluctuations in heart patients studied could also have been unintentional and a possible sign of serious illness that would explain the results.

Experts say more research is needed on potential risks of yo-yoing weight.

The study was published Wednesday in the New England Journal of Medicine.

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