In Fight Against Obesity, The U.S. Is Failing Women | Latest News

About 41 percent of women and 35 percent of men are obese, according to survey data collected as recently as 2014 and reported in one of the studies.

A decade earlier, about 38 percent of women and 34 percent of men were obese, the study found. Only the increase for women was large enough to be sure it wasn’t due to chance.


Over this same period, obesity rates for teens rose from about 17 percent to 21 percent, CDC researchers report in the second study.

“The most recent data before this point showed no increases overall in youth, men or women over the previous decade,” said Cynthia Ogden, a CDC researcher who worked on both studies.

“These trends are not explained by changes in age or educational levels in the population or by changes in the distribution of race-ethnic groups in the population or changes in smoking status,” Ogden added by email.

Globally, 1.9 billion adults are overweight or obese, according to the World Health Organization. Obesity increases the risk of heart disease, diabetes, kidney complications, joint disorders and certain cancers.

Also, read Surprising Research ! Link Between Saturated Fats And Heart Disease Questioned

Both studies analyzed data from a nationally representative survey of the U.S. population that includes questions about weight and height. Researchers looked at participants’ body mass index (BMI), a measure of weight relative to height, to assess trends in obesity over time.

For adults, a BMI between 18.5 and 24.9 is considered healthy, 25 to 29.9 is overweight, 30 or above is obese and 40 or higher is morbidly obese.

An adult who is 5’9” tall and weighs from 125 to 168 pounds would have a healthy weight and a BMI of 18.5 to 24.9, according to the U.S. Centers for Disease Control and Prevention. An obese adult at that height would weigh at least 203 pounds and have a BMI of 30 or more.

Almost 6 percent of men and 10 percent of women have what’s known as “class 3” obesity, with a BMI of at least 40 and the most severe risk of health complications tied to their weight, the CDC study of adults found.

If there’s a sliver of good news in all this data, it’s for the youngest children, ages 2 to 5, the CDC youth study found.

For these kids, obesity rates declined from about 14 percent a decade ago to 9 percent in the most recent survey.

Over that period, obesity rates for children ages 6 to 11 dipped slightly, but not enough to rule out the possibility that this was due to chance.

One limitation of both studies is that people in surveys tend to say they are taller and lighter than they really are, which can downplay obesity rates calculated from BMI, the authors note. BMI also doesn’t distinguish between fat and muscle.

Even so, the two studies suggest that huge investments to reverse the U.S. obesity epidemic over the past three decades haven’t done much to diminish the problem, Dr. Jody Zylke and Dr. Howard Bauchner, deputy editor and editor-in-chief of JAMA, respectively, wrote in an editorial.

“The rates among children and adults are driven by the same factors,” said Dr. Lili Lustig, a family medicine researcher at Cleveland Clinic in Ohio who wasn’t involved in the study.

Lack of exercise is part of the problem, and so is what people eat, Lustig added by email.

“We have done a deplorable job of helping parents understand food as a prescription for health,” Lustig said by email. “If a parent does not understand the value of food choices, how can you expect their children and the next generation to have any better understanding?”

SOURCE: Journal of the American Medical Association, online June 7, 2016.

For more latest obesity, nutrition, and weight loss research visit this page: Latest Studies and Research

Related Tags: Obesity in the US, Obesity rates in 2016, Obesity Rates, Women Obesity, Obesity Statistics, Obesity in Women, Obesity Epidemic.

Have You Ever Heard About Fat Virus ? Virus In Chicken Linked To Obesity

Recently, there has been research examining the connection between poultry consumption and weight gain. One study out of the Netherlands examining about 4,000 people, correlated chicken consumption with weight gain. Another study followed 89,000 people in four other countries and found that animal protein intake was associated with long-term weight gain, and poultry was the worst, with 40 percent more weight gain than red meat or processed meat.

What makes poultry so bad? Yes, chickens are fatty these days because of the way we’ve genetically manipulated them—up to ten times more fat and calories than they used to have—but one bizarre theory postulated that it might be due to an obesity-causing chicken virus. In one study, one in five obese humans tested positive to the chicken virus SMAM-1, with those exposed to the chicken virus averaging 33 pounds heavier than those testing negative.

SMAM-1 was the first chicken virus to be associated with human obesity, but not the last. The original obesity-causing chicken virus SMAM-1 was able to effectively transmit obesity from one chicken to another when caged together, similar to a human adenovirus Ad-36, a human obesity-associated virus first associated with obesity in chickens and mice. Ad-36 spreads quickly from one chicken to another via nasal, oral or fecal excretion and contamination, causing obesity in each chicken. This, of course, raises serious concerns about Ad-36-induced adiposity in humans.

The easiest way to test this hypothesis is to experimentally infect humans with the virus. However, ethical reasons preclude experimental infection of humans, and so, the evidence will have to remain indirect. In the absence of direct experimental data, we must rely on population studies, similar to how researchers nailed smoking and lung cancer. About 15 percent of Americans are already infected with Ad-36; so, we can follow them and see what happens. That’s exactly what a research team out of Taiwan did. They followed 1,400 Hispanic men and women for a decade and found that not only were those exposed to the virus fatter than those who were not, but also over the ten years, those with a history of infection had a greater percentage of body fat over time.

Also read: In Fight Against Obesity, The U.S. Is Failing Women

Most studies done to date on adults have found a connection between exposure to Ad-36 and obesity, and all studies done so far on childhood obesity show an increase in the prevalence of infection in obese children compared to non-obese children. We’re now up to more than a thousand children studied with similar findings. Obese children who tested positive for the virus weighed 35 pounds more than children who tested negative.

The virus appears to both increase the number of fat cells by mobilizing precursor stem cells and increase the accumulation of fat within the cells. If we take liposuction samples of fat from people, the fat cell precursors turn into fat cells at about five times the rate in people who came to the liposuction clinic already infected. Fat taken from non-infected people that were then exposed to the virus start sucking up fat at a faster rate, potentially inducing obesity without increasing food intake.

Just as Ad-36 can be transmitted horizontally from one infected chicken to another in the same cage, subsequently causing obesity in each chicken, this same virus is also easily transmitted among humans, raising the question as to whether at least some cases of childhood obesity can be considered an infectious disease. Researchers publishing in the International Journal of Pediatric Obesity speculate that this animal adenovirus may have mutated to become a human adenovirus capable of infecting humans and causing obesity.

Video Transcript : 

0:00 think twice before blaming yourself or someone else for being overweight

0:04 a new study suggests a common childhood virus could be the culprit

0:08 researchers found that children exposed to add no virus 36 an infection that

0:12 causes short-term gastrointestinal and respiratory symptoms

0:16 wait an average of 52 pounds more than children who were never infected

0:20 researchers believe this fat virus increases the body's fat cells and makes

0:24 it harder for the body to break down mature fat cells later

0:27 the result is that people affected by the virus store more fat overall

0:31 so go easy on the next overweight person you see diet and exercise may not work

0:36 as well for them as they do for you

From: nutritionfacts.org

For more latest obesity, nutrition, and weight loss research visit this page: Latest Studies and Research

Related Tags: Virus In Chicken Linked To Obesity, Poultry Virus Linked to Obesity, Fat Virus, Adenovirus, SMAM-1 Virus Chicken, Obesity Virus