{"id":2041,"date":"2020-08-26T07:28:11","date_gmt":"2020-08-26T11:28:11","guid":{"rendered":"https:\/\/globalfoodresearchprogram.web.unc.edu\/?p=2041"},"modified":"2022-09-01T12:16:34","modified_gmt":"2022-09-01T16:16:34","slug":"metanalysis-shows-obesity-is-a-major-risk-factor-for-covid-complications","status":"publish","type":"post","link":"https:\/\/www.globalfoodresearchprogram.org\/metanalysis-shows-obesity-is-a-major-risk-factor-for-covid-complications\/","title":{"rendered":"Metanalysis shows obesity is a major risk factor for COVID complications"},"content":{"rendered":"

New analysis led by UNC-Chapel Hill\u2019s Barry Popkin, PhD<\/a>,<\/strong> shows that obesity plays a major role in the severity of consequences experienced by those who become infected with the coronavirus.<\/p>\n

Popkin, W.R. Kenan Jr. Distinguished Professor in the Department of Nutrition at the UNC Gillings Global School of Public Health<\/a><\/strong>, is lead author of \u201cIndividuals with obesity and COVID-19: A global perspective on the epidemiology and biological relationships,\u201d<\/a><\/strong> which was published August 26 in Obesity Reviews<\/em> in collaboration with the Saudi Health Council and the World Bank. Other Gillings School coauthors are Shufa Du, MD, PhD<\/a>,<\/strong> associate professor, Melinda Beck, PhD<\/a><\/strong>, professor, and postdoctoral fellow Will Green, PhD, all of the nutrition department.<\/p>\n

The relationship between obesity and COVID-19 is controversial, and little analysis has been done on the role obesity plays in how individuals experience the virus. Researchers examined the available published literature on individuals infected with the virus and found that those with obesity (BMI over 30) were at a greatly increased risk for hospitalization (113%) as a result of the virus, more likely to be admitted to the ICU (74%) and had a higher risk of death (48%) from the virus.<\/p>\n

The new paper reviews immunological and biomedical data to provide a detailed layout of the mechanisms and pathways that link obesity with increased risk of COVID-19 as well as an increased likelihood of developing more severe complications from the virus.<\/p>\n

Obesity is already associated with numerous underlying risk factors for COVID-19, including hypertension, heart disease type 2 diabetes, and chronic kidney and liver disease. Metabolic changes caused by obesity \u2013 such as insulin resistance and inflammation \u2013 make it difficult for individuals with obesity to fight some infections, a trend that can be seen in other infectious diseases, such as influenza and hepatitis.<\/p>\n

During times of infection, uncontrolled serum glucose, which is common in individuals with hyperglycemia, can impair immune cell function.<\/p>\n

\u201cAll of these factors can influence immune cell metabolism, which determines how bodies respond to pathogens, like the SARS-CoV-2 coronavirus,\u201d says Beck. \u201cIndividuals with obesity are also more likely to experience physical ailments that make fighting this disease harder, such as sleep apnea, which increases pulmonary hypertension, or a body mass index that increases difficulties in a hospital setting with intubation.\u201d<\/p>\n

Previous work by Beck and others have demonstrated that the influenza vaccine is less effective in adults with obesity. The same may be true for a future SARS-CoV-2 vaccine, says Beck.<\/p>\n

\u201cHowever, we are not saying that the vaccine will be ineffective in populations with obesity, but rather that obesity should be considered as a modifying factor to be considered for vaccine testing,\u201d she says. “Even a less protective vaccine will still offer some level of immunity.”<\/p>\n

The pandemic\u2019s resulting lockdown has led to a number of conditions that make it harder for individuals to achieve or sustain a healthy weight. Working from home, limiting social visits and a reduction in everyday activities \u2013 all in an effort to stop the spread of the virus \u2013 means we\u2019re moving less than ever, says Popkin. The ability to access healthy foods has also taken a hit. Economic hardships put those who are already food insecure at further risk, making them more vulnerable to conditions that can arise from consuming unhealthy foods.<\/p>\n

\u201cWe\u2019re not only at home more and experience more stress due to the pandemic, but we\u2019re also not visiting the grocery store as often, which means the demand for highly processed junk foods and sugary beverages that are less expensive and more shelf-stable has increased,\u201d he says. \u201cThese cheap, highly processed foods are high in sugar, sodium and saturated fat and laden with highly refined carbohydrates, which all increase the risk of not only excess weight gain but also key noncommunicable diseases.\u201d<\/p>\n

Popkin, who is part of the Global Food Research Program at UNC<\/a>,<\/strong> says the findings highlight why governments must address the underlying dietary contributors to obesity and implement strong public health policies proven to reduce obesity at a population level. Other countries, like Chile and Mexico, have adopted policies from taxing foods high in sugar to introducing warning labels on packaged foods that are high in sugar, fats and sodium and restricting the marketing of junk foods to children.<\/p>\n

\u201cGiven the significant threat COVID-19 represents to individuals with obesity, healthy food policies can play a supportive \u2013 and especially important \u2013 role in the mitigation of COVID-19 mortality and morbidity,\u201d he says.<\/p>\n

Contacts: <\/strong><\/p>\n

Barry Popkin<\/p>\n

popkin@unc.edu<\/a><\/p>\n

Melinda Beck<\/p>\n

melinda_beck@med.unc.edu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

New analysis led by UNC-Chapel Hill\u2019s Barry Popkin, PhD, shows that obesity plays a major role in the severity of consequences experienced by those who become infected with the coronavirus. Popkin, W.R. Kenan Jr. Distinguished Professor in the Department of Nutrition at the UNC Gillings Global School of Public Health, is lead author of \u201cIndividuals […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,46],"tags":[],"class_list":["post-2041","post","type-post","status-publish","format-standard","hentry","category-barry-popkin","category-covid-19"],"acf":[],"yoast_head":"\nMetanalysis shows obesity is a major risk factor for COVID complications - Global Food Research Program<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.globalfoodresearchprogram.org\/metanalysis-shows-obesity-is-a-major-risk-factor-for-covid-complications\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Metanalysis shows obesity is a major risk factor for COVID complications - Global Food Research Program\" \/>\n<meta property=\"og:description\" content=\"New analysis led by UNC-Chapel Hill\u2019s Barry Popkin, PhD, shows that obesity plays a major role in the severity of consequences experienced by those who become infected with the coronavirus. 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