{"id":1253,"date":"2016-09-06T13:23:16","date_gmt":"2016-09-06T20:23:16","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/new-study-has-dire-warning-even-a-few-extra-pounds-can-kill-you\/"},"modified":"2023-11-19T12:15:07","modified_gmt":"2023-11-19T20:15:07","slug":"new-study-has-dire-warning-even-a-few-extra-pounds-can-kill-you","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/new-study-has-dire-warning-even-a-few-extra-pounds-can-kill-you\/","title":{"rendered":"New study has dire warning: Even a few extra pounds can kill you"},"content":{"rendered":"\n \n \n\n\n\n\n\n\n\n
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\n\n \n Press Release<\/span>\n\n\n\n<\/div>\n \n \n
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New study has dire warning: Even a few extra pounds can kill you<\/h1>\n\n\n<\/div>\n \n \n
\n Zen Vuong<\/span>\n \n September 06, 2016<\/span>\n <\/div>\n \n \n
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Being overweight increases the chances of premature death, according to a USC researcher.
\nAlthough people accept that obesity can shorten a person\u2019s life span, scientists have debated whether the weight category between normal and obese is, in fact, a health risk.
\nBeing overweight definitely does not help people live longer, said\u00a0Jonathan Samet, director of the\u00a0USC Institute for Global Health<\/a>. His statement is backed by a four-continent effort involving 239 studies and data from 10.6 million people. The collaborative and comprehensive study \u2014 one of the largest to date \u2014 was published in\u00a0The Lancet<\/a><\/em>.
\nThe results have important clinical and public health implications, Samet said.
\n\u201cPhysicians should identify being overweight as posing a risk to health,\u201d said Samet, one of the study\u2019s authors and holder of the Flora L. Thornton Chair in Preventive Medicine at the Keck School of Medicine of USC. \u201cIncreasing the risk of dying is a powerful indicator of health. The new results on overweight should be strong motivation for people to return to a healthy weight.\u201d
\nThe\u00a0World Health Organization<\/a>\u00a0states that more than 1.9 billion people \u2014 about 39 percent of adults \u2014 are overweight, defined as having a body mass index between 25 and 30. For example, a 5-foot-4 person who weighs 140 pounds has a healthy BMI of 24. Add five pounds and this individual would be considered overweight.
\nThe study analyzed participants who had never smoked, did not have chronic disease and were still alive five years after the research began. The study involved 385,879 deaths in 239 studies.
\nOverweight and obesity were strongly connected to coronary heart disease, stroke and respiratory disease death, and were moderately linked to cancer mortality. The findings were reflected in Europe, North America and East Asia.<\/p>\n

New finding contradicts a 2013 review article<\/h3>\n

The new finding on overweight is counter to the results of a prior paper in\u00a0The Journal of the American Medical Association<\/em>, which found that being overweight actually adds to one\u2019s life span, and \u201cgrade 1 obesity\u201d (BMI 30-35) did not increase mortality. The\u00a0JAMA<\/em>\u00a0article was based on a review of 97 studies with 2.9 million participants.
\nThe\u00a0Lancet<\/em>\u00a0study did more than just summarize published results; the data from all 239 studies was analyzed in a standard way.
\n\u201cOur study was able to reproduce [the\u00a0JAMA<\/em>\u00a0review\u2019s] findings when conducting crude analyses with inadequate control of reverse causality, but not when we conducted appropriately strict analyses,\u201d\u00a0The<\/em>\u00a0Lancet<\/em>\u00a0paper stated.
\nThe WHO states that about 95 million children \u2014 mostly in less developed regions \u2014 are underweight.
\nBeing underweight, according to the study, was associated with substantially higher respiratory disease mortality and somewhat higher death rates from coronary heart disease, stroke and cancer. These findings held true in Asia, Australia, New Zealand, Europe and North America.<\/p>\n

Keeping your weight in check<\/h3>\n

One of the study\u2019s limitations, like many other research papers in this arena, is the use of BMI as a surrogate for visceral fat, which is thought to be key in bringing about the negative consequences linked to obesity.
\n\u201cThe health risk associated with obesity is thought to be driven by abdominal fat,\u201d Samet said. \u201cBMI is an imperfect measure of fat in someone\u2019s belly. There are more gold standard ways to measure fat, but that can\u2019t be done for 10.6 million people.\u201d
\nUsing an accepted but imperfect measure, the study was able to find a connection between premature death and being overweight. The proportion of premature deaths that could be avoided with a healthy weight (between BMI 18.5 and 25) is about 1 in 5 in North America, 1 in 6 in Australia and New Zealand, 1 in 7 in Europe and 1 in 20 in East Asia.
\nIn short, like smoking, the health problems associated with underweight, overweight and obesity are substantial but potentially preventable.
\nSun Ha Jee, an epidemiology professor at Yonsei University in Seoul, contributed to the research. He shared data from 1.3 million people in the Korean Cancer Prevention Study.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":60,"featured_media":1254,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[81,20],"class_list":["post-1253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-department-of-population-and-public-health-sciences","tag-research"],"acf":[],"yoast_head":"\nNew study has dire warning: Even a few extra pounds can kill you<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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(Photo\/<a href=\"https:\/\/creativecommons.org\/licenses\/by-nd\/2.0\/\">Greg Wagoner<\/a>)","series_order":"","_links":{"self":[{"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/posts\/1253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/comments?post=1253"}],"version-history":[{"count":0,"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/posts\/1253\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/media\/1254"}],"wp:attachment":[{"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/media?parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/categories?post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/keck.usc.edu\/news\/wp-json\/wp\/v2\/tags?post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}