Tag: obesity

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Coke vs obesity

“Coca-Cola is taking on obesity,” read the AP coverage of the company’s new commercial this week, “with an online video showing how [much] fun it could be to burn off the 140 calories in a can of its soda.”

As The Atlantic reports,”The scene puts a covey of Californians around a comically oversized bicycle on Santa Monica beach. imagesThey stationery-cycle in montage for 20 to 30 smiling minutes each (depending on each person’s size and vigor), until they’ve burned the requisite number of calories to coax an aluminum can along a whimsical Rube-Goldberg-type trapeze. The can eventually reaches the big payoff, when a giant disembodied hand bestows to the pedaler Coca-Cola.

“Not everyone thought it looked fun. “They’re showing exactly why you wouldn’t want to drink a Coke,” brand consultant Laura Riessaid, presumably not while biking. “Twenty-three minutes on a bike is not fun for most people.” (23 minutes was the average time required for a 140-pound person—though as Adweek noted, the average 20-year-old man weighs 196 pounds, and the average woman of the same age weighs 166 pounds.)

“It’s also uncomfortably evocative of a lab experiment where hamsters run on a wheel until they are delivered a pellet of, say, opium. But others in the foodie world were less skeptical of the marketing move than they were enraged by it. I probably would have been too, if I were still capable of strong emotions. Continue reading “Coke vs obesity”

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The hungry games

For most of the last century, our understanding of the cause of obesity has been based on immutable physical law. Specifically, it’s the first law of thermodynamics, which dictates that energy can neither be created nor destroyed. When it comes to body weight, this means that calorie intake minus calorie expenditure equals calories stored. Surrounded by tempting foods, we overeat, consuming more calories than we can burn off, and the excess is deposited as fat. The simple solution is to exert willpower and eat less.images

The problem is that this advice doesn’t work, at least not for most people over the long term. In other words, your New Year’s resolution to lose weight probably won’t last through the spring, let alone affect how you look in a swimsuit in July. More of us than ever are obese, despite an incessant focus on calorie balance by the government, nutrition organizations and the food industry.

But what if we’ve confused cause and effect? What if it’s not overeating that causes us to get fat, but the process of getting fatter that causes us to overeat?

The more calories we lock away in fat tissue, the fewer there are circulating in the bloodstream to satisfy the body’s requirements. If we look at it this way, it’s a distribution problem: We have an abundance of calories, but they’re in the wrong place. As a result, the body needs to increase its intake. We get hungrier because we’re getting fatter.

It’s like edema, a common medical condition in which fluid leaks from blood vessels into surrounding tissues. No matter how much water they drink, people with edema may experience unquenchable thirst because the fluid doesn’t stay in the blood, where it’s needed. Similarly, when fat cells suck up too much fuel, calories from food promote the growth of fat tissue instead of serving the energy needs of the body, provoking overeating in all but the most disciplined individuals.

We discuss this hypothesis in an article just published in JAMA, The Journal of the American Medical Association. According to this alternative view, factors in the environment have triggered fat cells in our bodies to take in and store excessive amounts of glucose and other calorie-rich compounds. Since fewer calories are available to fuel metabolism, the brain tells the body to increase calorie intake (we feel hungry) and save energy (our metabolism slows down). Eating more solves this problem temporarily but also accelerates weight gain. Cutting calories reverses the weight gain for a short while, making us think we have control over our body weight, but predictably increases hunger and slows metabolism even more. Continue reading “The hungry games”

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Weighty academic issues

Overweight professors across academe describe battles to achieve self-acceptance, full inclusion in academic life, and genuine respect from students and colleagues. Vitae reports that:

“Some struggle daily to navigate campus spaces that don’t comfortably accommodate their size. Some stand in front of classrooms and wonder whether their bodies influence how students perceive their minds. Some say they have trouble adhering to exercise plans or healthy eating habits because their jobs come with lots of research and little structure.Yet larger professors often grapple with these concerns in isolation and silence. On a national level, discussions of obesity have become increasingly common—and, at times, increasingly contentious. But many fat professors, along with allies in the emerging field of fat studies, feel that colleges and universities have yet to hold productive conversations on the topic, especially when it comes to “fat shaming” and how size influences hiring, tenure, and promotion decisions.

“The situation for fat academics has worsened as our national discourse about obesity has ramped up,” says Christina Fisanick, an associate professor of English at California University of Pennsylvania.Fisanick has tracked the discourse for some time, in part because she herself has struggled with obesity. (Due to a binge-eating disorder, her weight has risen as high as 353 pounds; it’s now down to 228.) Writing in 2007 for Feminist Teacher, she pointed out that the few fat professors depicted on film are treated farcically: Think of Sherman Klump in Eddie Murphy’s remake of The Nutty Professor, for example, or the unnamed (but Colonel Sandersesque) biology professor played by Robert Kokol in Adam Sandler’s The Waterboy. These images, according to Fisanick, affect students’, professors’, and administrators’ expectations of what a scholar should look like.Fisanick’s piece also hinted at a question that many fat academics have found themselves asking: Will they face bias in job interviews or in tenure and promotion decisions? Continue reading “Weighty academic issues”

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Child obesity, down then up again

U.S. childhood obesity rates have increased over the past 14 years, according to a study published on Monday, casting doubt on a recent analysis by government health researchers that found a sharp drop in

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preschool obesity rates over the past decade, Reuters reports.

“The good news, announced in February by researchers at the U.S. Centers for Disease Control and Prevention (CDC), received widespread media coverage and prompted first lady Michelle Obama to say she was “thrilled at the progress we’ve made over the last few years in obesity rates among our youngest Americans.

“The new study, published online in the medical journal JAMA Pediatrics, used the same data source as the CDC, but analyzed obesity rates over a different timeframe. It found increases in obesity for children age 2 to 19, and a marked rise in the percentage who were severely obese.Asheley Cockrell Skinner of the University of North Carolina at Chapel Hill, who led the new study, said the main message of her analysis is that childhood obesity rates have not improved.”I don’t want a study like the previous one to change the national discourse,” she told Reuters Health, referring to the CDC’s work.

“Obesity experts had already begun to question the large drop reported by the CDC for children ages 2 to 5. In their February paper the CDC scientists themselves acknowledged the statistical limitations of their data.CDC researcher Cynthia Ogden, who led the study released in February, said in response that her report described trends over the last 10 years and found “an apparent decline in obesity among children ages 2-5 (which we said in the paper should be interpreted cautiously).””We’re confident in our analysis for this time period,” she wrote in an email to Reuters Health on Monday,

Continue reading “Child obesity, down then up again”

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U.S. obesity hits all time high at 27%

The adult obesity rate so far in 2013 is 27.2%, up from 26.2% in 2012, and is on pace to surpass all annual average obesity rates since Gallup-Healthways began tracking in 2008.

The one-percentage-point uptick in the obesity rate so far in 2013 is statistically significant and is the largest year-over-year increase since 2009, Gallup reports:

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“The higher rate thus far in 2013 reverses the lower levels recorded in 2011 and 2012, and is much higher than the 25.5% who were obese in 2008. The increase in obesity rate is accompanied by a slight decline in the percentage of Americans classified as normal weight or as overweight but not obese. The percentage of normal weight adults fell to 35.3% from 35.9% in 2012, while the percentage of adults who are overweight declined to 35.5% from 36.1% in 2012. An additional 1.9% of Americans are classified as underweight in 2013 so far.

“Since 2011, U.S. adults have been about as likely to be classified as overweight as normal weight. Prior to that, Americans were most commonly classified as overweight.

“Gallup and Healthways began tracking Americans’ weight in 2008. The 2013 data are based on more than 141,000 interviews conducted from Jan. 1 through Oct. 28 as part of the Gallup-Healthways Well-Being Index. Gallup uses respondents’ self-reported height and weight to calculate body mass index (BMI) scores. Individual BMI values of 30 or above are classified as “obese,” 25 to 29.9 are “overweight,” 18.5 to 24.9 are “normal weight,” and 18.4 or less are “underweight.”

“Obesity rates have increased at least slightly so far in 2013 across almost all major demographic and socioeconomic groups. One exception is 18- to 29-year-olds, among whom the percentage who are obese has remained stable. The largest upticks between 2012 and 2013 were among those aged 45 to 64 and those who earn between $30,000 and $74,999 annually. The obesity rate within both groups increased by 1.8 points, which exceeds the one-point increase in the national average. At 35.7%, blacks continue to be the demographic group most likely to be obese, while those aged 18 to 29 and those who earn over $75,000 annually continue to be the least likely to be obese.”

 

More at: http://www.gallup.com/poll/165671/obesity-rate-climbing-2013.aspx

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Anti-depressants and diabetes

The link may be indirect, but there is yet another health risk associated with being depressed.images

The University of Southampton team looked at available medical studies and found evidence the two were linked., reports the BBC today. But there was no proof that one necessarily caused the other.

“It may be that people taking anti-depressants put on weight which, in turn, increases their diabetes risk, the team told Diabetes Care journal. Or the drugs themselves may interfere with blood sugar control. Their analysis of 22 studies involving thousands of patients on anti-depressants could not single out any class of drug or type of person as high risk. Prof Richard Holt and colleagues say more research is needed to investigate what factors lie behind the findings.

“And they say doctors should keep a closer check for early warning signs of diabetes in patients who have been prescribed these drugs. With 46 million anti-depressant prescriptions a year in the UK, this potential increased risk is worrying, they say. Prof Holt said: “Some of this may be coincidence but there’s a signal that people who are being treated with anti-depressants then have an increased risk of going on to develop diabetes. “We need to think about screening and look at means to reduce that risk.” Diabetes is easy to diagnose with a blood test, and Prof Holt says this ought to be part of a doctor’s consultation.

“Diabetes is potentially preventable by changing your diet and being more physically active.  Continue reading “Anti-depressants and diabetes”

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Defending Ronald

McDonald’s Corp. Chief Executive Don Thompson, presiding over his first annual shareholders meeting since taking the helm of the fast-food chain last summer, defended the company’s efforts to market to children, reports the Wall Street Journalimgres

“Several speakers associated with Corporate Accountability International, a nonprofit corporate watchdog that put forward a proposal calling on McDonald’s to conduct an assessment of its nutrition initiatives, accused the company of contributing to the country’s obesity problem by targeting children, particularly minorities. McDonald’s CEO defended mascot Ronald McDonald, saying the fast-food chain isn’t the cause of obesity.Mr. Thompson, McDonald’s first African-American chief executive, said the criticism hits close to home and staunchly defended McDonald’s marketing practices.

“We are not the cause of obesity. Ronald is not a bad guy,” Mr. Thompson said Thursday “He’s about fun. He’s a clown. I’d urge you all to let your kids have fun, too.” Continue reading “Defending Ronald”

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The new politics of obesity

New Jersey Gov. Chris Christie acknowledged on Monday that he recently underwent lap band surgery to help him lose weight, reports Slate.com.  images-1“The governor says personal health motivated his decision, but his heft—Christie reportedly topped 300 pounds—could also complicate a 2016 presidential bid. William Howard Taft was at least as obese as Christie. Did his doctors tell him to lose weight?

“Yes. Doctors at the turn of the 20th century advised patients to carry a 20- to 50-pound reserve in case of prolonged illness, a reasonably sound recommendation at a time when pneumonia, tuberculosis, and diarrhea each killed more Americans than heart disease or diabetes. Extreme obesity, however, has long been recognized as a problem. Eighteenth-century medical journals associated obesity with drowsiness, gout, and difficulty breathing. Taft, who weighed as much as 340 pounds during his presidency, suffered from all three. Taft publicly acknowledged his weight problem—it was probably difficult to ignore after the president of the Massachusetts Society for the Prevention of Cruelty to Animals called on him to give up horseback riding—noting that “too much flesh is bad for any man.” (“Extra flesh” was the common euphemism for obesity at the time.) Taft implied that his ideal weight was 270 pounds, though, which indicates how much standards for body weight have changed. Even at that weight, a man of Taft’s height would today be considered severely obese according to hisbody mass index. Continue reading “The new politics of obesity”

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Child obesity drops, but not everywhere

Child obesity experts say that this could be the first generation to live shorter lives than their parents. This is why this month’s reported drop in child obesity in Philadelphia is important, although recent drops do not represent a nation-wide trend. Reported in the New York Times today, the Philadelphia Inquirer says the study was released in September. The Inquirer’s Peter Rusha writes:

“The Philadelphia Inquirer ran a substantial piece about the news on Sept. 7, the day after the foundation published a Web page on Philadelphia, along with a video interview, crediting the original source, a lengthy article in the journal Preventing Chronic Disease.

“The rate of obese local public-school students dropped nearly 5 percent between 2006 and 2010, when national obesity rates remained unchanged after tripling since the mid-1970s,” wrote the Inquirer’s Continue reading “Child obesity drops, but not everywhere”