Category Archives: Obesity

Nov 5 2013
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‘Fast Food Facts’: Q&A with the Yale Rudd Center for Food Policy & Obesity

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In 2012 alone, the fast food industry spent $4.6 billion to advertise mostly unhealthy products, with many of those ads specifically targeting children and teens. A new report, Fast Food FACTS 2013, examined 18 of the nation’s top fast-food restaurants, following up on a 2010 report to see how the food selection and advertising landscapes have changed. And while there have been some positive developments—healthier sides and beverages are available in most kids’ meals—the findings indicate there is still a very long way to go.

Detailed findings from the report, which was supported by a grant from the Robert Wood Johnson Foundation, will be presented today at the American Public Health Association’s (APHA) annual meeting in Boston.

>>Read more on the Fast Food FACTS 2013 report.

>>NewPublicHealth will be on the ground throughout the APHA conference speaking to public health leaders, hearing from attendees on the ground and providing updates from sessions, with a focus on building a culture of health. Follow the coverage here.

NewPublicHealth spoke with Jennifer Harris, the Yale Rudd Center for Food Policy & Obesity’s director of marketing initiatives and lead author of the report, and Marlene Schwartz, the Center’s director, about their findings and how fast food advertising continues to impact our nation’s youth.

NewPublicHealth: Has any progress been made in the nutritional quality of fast food kids' meals?

Jennifer Harris: There have been a lot of changes in kids’ meals over the past three years and a lot of it has been good. Most of the restaurants have added healthy sides and healthy beverages to their kids’ meals. Now it’s possible to get a fairly healthy kids’ meal at most of the restaurants we looked at. But the problem is it’s kind of like finding a needle in a haystack. Almost all of the meals they offer are high in fat, sugar or sodium.

Marlene Schwartz: The odds of you getting the healthy combination when you go are extraordinarily low. For every healthy combination, there are roughly 250 unhealthy combinations.

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Oct 30 2013
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Public Health News Roundup: October 30

HPV Vaccines Less Effective in African-American Women than in White Women
Perhaps because of their lower participation rates in clinical trials, African-American women are less likely to benefit from available human papillomavirus (HPV) vaccines that guard against cervical cancer, according to new findings presented at the 12th annual International Conference on Frontiers in Cancer Prevention Research. The two most popular vaccines in use protect against infection by HPV 16 and HPV 18, which are responsible for about 70 percent of cervical cancers. However, these two subtypes are half as likely to be found in black women as they are in white women. Researchers found that the most common infections for white women are from subtypes 16, 18, 56, 39 and 66; the most common for black women are 33, 35, 58 and 68. "Since African-American women don't seem to be getting the same subtypes of HPV with the same frequency, the vaccines aren't helping all women equally," said study author Adriana Vidal, Ph.D., assistant professor of obstetrics and gynecology at Duke University School of Medicine. Read more on health disparities.

San Francisco Proposes Tax on Soda, Other Sugary Beverages
In an effort to curb the growing rate of obesity and obesity-related health issues, a San Francisco, California city supervisor has proposed a ballot measure that would impose a 2-cents-per-ounce tax on soda and other sugary beverages with at least 25 calories per ounce. This would be the first and strongest such city measure in the country, amounting to an additional 24 cents for a normal 12-ounce can of soda. Supervisor Scott Wiener said the tax proceeds, which he estimates would be $30 million annually, would go toward physical education and healthy lunch programs in city schools, as well as city parks, recreation programs and community health organizations. The California cities of Richmond and El Monte last year failed to enact similar taxes. A ballot measure requires a two-thirds majority to pass. "We know that this will be a long road," said Wiener. "This type of proposal has occurred in other cities and the beverage industry always comes out full guns blaring, so we're going to need to pull together to make sure that this wins." Read more on obesity.

Study: Young Cancer Patients at Increased Risk for Suicide
The stress of a cancer diagnosis means that teens and young adults who are diagnosed should be carefully monitored for behavior changes and other issues that could be a sign of suicidal thoughts, according to a new study in the Annals of Oncology. While there is an elevated risk of suicide for cancer patients of all ages, “because adolescents and young adults are still developing their coping strategies for stress, they may be more affected than adults when facing major adversity such as a cancer diagnosis," said lead researcher Donghao Lu, from the department of medical epidemiology and biostatistics at the Karolinska Institute in Stockholm, Sweden. Lu and his team found that Swedes ages 15-30 with a cancer diagnosis were at a 60 percent greater risk of suicide or attempted suicide, compared to people in the same age group but without cancer; in the first year after the diagnosis the risk was 150 percent higher. Lu said the findings indicate the need for greater communication and cooperation among medical professionals, psychological professionals, family members and social workers. Read more on cancer.

Oct 14 2013
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Public Health News Roundup: October 14

Study: Erratic Bedtimes Linked to Kids’ Behavior Problems
Children with erratic bedtimes also exhibit more behavior problems at home and at school, according to a new study in the journal Pediatrics. Researchers analyzed date on more than 10,000 children who were part of long-term sleep studies, finding that kids without a regular bedtime scored worse on a measure of behavior problems including acting unhappy, getting into fights and being inconsiderate. "If you are constantly changing the amounts of sleep you get or the different times you go to bed, it's likely to mess up your body clock," said study leader Yvonne Kelly, from University College London. "That has all sorts of impacts on how your body is able to work the following day," Kelly, from University College London.” However, the researchers also found that when a child went from no set bedtime to a scheduled bedtime, their behavior improved. Read more on pediatrics.

Overweight Teens at Increased Risk of Later Esophageal Cancer
People who are overweight or obese as teens have nearly twice the risk of developing esophageal cancer later in life when compared to their peers with healthy weights, according to a new study in the journal Cancer. The study also found that social status, economic status and education levels can all be factors in the development of gastric cancers; poor teens are at twice the risk of developing stomach cancer, as are teens with nine years of fewer of education. The study included more than 1 million male Israeli teens. "We look at obesity as dangerous from cardiovascular aspects at ages 40 and over, but here we can see that it has effects much earlier," said study author Zohar Levi, MD, of the Rabin Medical Center in Israel. However, the study did not prove cause-and-effect, so further research is needed to determine whether losing weight or gaining higher social or economic status later in life can reduce the risks. Read more on cancer.

USDA: California Plants Linked to Salmonella Can Stay Open
After making “immediate substantive changes to their slaughter and processing,” three California poultry processing plants tied to a salmonella outbreak in 17 states will remain open, the U.S. Department of Agriculture (USDA) has determined. The plants will implement new food safety controls and the USDA will monitor the plants products for the next three months. The outbreak has sickened 278 people since May; the normal hospitalization rate is about 20 percent, but antibiotic resistance means about 42 percent of the people sickened in this outbreak were hospitalized. Read more on food safety.

Oct 7 2013
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Public Health News Roundup: October 7

Study: Top Athletes Endorse Junk Food More Often Than Healthy Food
A new study of professional athletes’ food and beverage endorsements found that more often than not their paid support is given to products that are energy-dense and nutrient-poor, according to a new study in the journal Pediatrics. The study looked at 512 brands endorsed by 100 different athletes, finding that “Seventy-nine percent of the 62 food products in athlete-endorsed advertisements were energy-dense” and “93.4% of the 46 advertised beverages had 100% of calories from added sugar.” Denver Broncos player Peyton Manning and Miami Heat player LeBron James had the most endorsements for the energy-dense, nutrient-poor food and beverages. "I hope this paper inspires some reflection on the part of America's athletes and professional sports leagues, as well as all other celebrities for that matter,” said Center for Science in the Public Interest Executive Director Michael F. Jacobson, in a statement. Read more on nutrition.

U.S. Task Force Recommends Against Blood Pressure Screening for Kids, Teens
Despite recommendations from several expert groups, the U.S. Preventive Services Task Force is not recommending that health care professionals respond to the growing obesity crisis by screening children and teens for high blood pressure. The panel concluded that more study into the issue is needed, and that in the mean time there are other, known avenues toward lowering youth obesity and improving cardiovascular health. "We don't know if lowering blood pressure in youth leads to improved cardiovascular health in adulthood,” said panel member Kirsten Bibbins-Domingo, MD. “We also don't know the long-term benefits and harms for children and adolescents who initiate blood pressure medications when they are young. While there is much we don't know, we do know that eating a healthy diet, being active, and maintaining a normal weight are ways children and teens can improve their cardiovascular health." Read more on heart health.

Study: Tobacco Advertisements Connecting with Young Kids in Many Low-, Middle-income Countries
The global pervasiveness of tobacco advertisements means that most very young children in many low-and middle-income countries are familiar with cigarette brands, and nearly 70 percent of kids ages 5 and 6 can identify at least one cigarette logo, according to a new study in the journal Pediatrics. The study is from the Institute for Global Tobacco Control at the Johns Hopkins Bloomberg School of Public Health. The findings demonstrate the significant steps countries and public health organizations still need to take to limit the influence of tobacco ads. “Evidence-based strategies exist to reduce the ability of tobacco companies to market their products to children, such as implementing and enforcing bans on tobacco advertising, promotion and sponsorship,” said Joanna Cohen, PhD, co-author of the study and director on the institute. “Putting large picture warnings on the front and back of cigarette packs and requiring plain and standardized packaging, as Australia has done, also helps to reduce the attractiveness of cigarette packs among young children.” Read more on global health.

Sep 27 2013
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Public Health News Roundup: September 27

Even Healthy Weight Adults with High Body Fat at Increased Risk of Heart Disease
Even older adults with healthy body weights can be at increased risk of cardiovascular diseases if they have high percentages of body fat, according to a new study The American Journal of Cardiology. "Just because someone has a normal BMI does not necessarily mean they are metabolically normal," said lead researcher Dr. John Batsis, a geriatrician at Dartmouth-Hitchcock Medical Center in Lebanon, New Hampshire. The study found that women with excess body fat (above 35 percent) were 57 percent more likely to die from heart-related causes within 11 years than were women with healthy body fat levels. Javier Salvador, MD, an endocrinologist at the University Clinic of Navarra in Pamplona, Spain, who was not involved in the study, said the findings demonstrate the limits of body mass index (BMI), which measures weight in relation to height. Read more on heart health.

‘Image Discrepancies’ of Job Roles Can Hurt Job Satisfaction, Performance and Pay
The lack of client understanding of the actual job roles of nurse practitioners and other professionals can negatively impact job satisfaction, performance and pay, according to a recent study in the Academy of Management Journal. "If people don't understand what you do, they tend to devalue what you do," study co-author Michael Pratt, a professor of management and organization at Boston College. "They don't understand why you're making all this money—'Why should I pay you all this money?' is a common question these professionals keep hearing." The study looked at “image discrepancies” in four professions—nurse practitioners, architects, litigation attorneys and certified public accountants—finding a noticeable and negative lack of understanding by clients for each. For example, many patients don’t realize that nurse practitioners can examine patients and prescribe medicine, and instead insist on seeing a doctor. "I assumed professionals would actually get over it, that there would be frustration, it would be an interpersonal problem, and that would be the extent of it," Pratt said. "I didn't think it would have such a big impact on how they did their job, how it affected their pay and how they performed. I was surprised at the depth of how this affected job performance. It's not simply annoying -- it has real impact.” Read more on mental health.

CDC Emphasizing Electronic Laboratory Reporting to Improve Public Health’s Response to Disease Outbreaks
The U.S. Centers for Disease Control and Prevention’s (CDC) emphasis on the widespread adoption of electronic laboratory reporting (ELR) has helped improve public health’s response to dangerous infections, according to data from CDC’s Morbidity and Mortality Weekly Report (MMWR). ELRs enable labs to report disease outbreak information quickly and in a usable format. The number of labs that utilize ELRs has more than doubled since 2005, and CDC has helped fund their increased use since 2010 in 57 state, local and territorial health departments. Current estimates are that about 62 percent of lab reports were received electronically. “Electronic laboratory reporting can give health officials better, more timely and complete information on emerging infections and outbreaks than they have ever received before,” said Robert Pinner, MD, associate director for surveillance, programs and informatics in CDC’s National Center for Emerging and Zoonotic Diseases. “Implementing these systems is a complex task that requires substantial investment, but ELR will provide health departments the tools they need to quickly identify and respond to disease threats and monitor disease trends now and in the future.” Read more on technology.

Sep 25 2013
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Public Health News Roundup: September 25

State AGs Urge FDA to Adopt New Regulations Covering E-cigarettes
The Attorneys General of 41 states are urging the U.S. Food and Drug Administration (FDA) to follow through on a pledge to issue regulations that would expand its oversight to include e-cigarettes. In a letter to FDA Commissioner Margaret Hamburg, they asked “the FDA to move quickly to ensure that all tobacco products are tested and regulated to ensure that companies do not continue to sell or advertise to our nation's youth.” The FDA was given authority to regulate cigarettes, cigarette tobacco and roll-your-own tobacco in 2009, as well as the authority to expand its authority after it issued new regulations. Last week a similar plea related to FDA authority was made to President Obama by the American Academy of Pediatrics and 14 other public health organizations, including the American Lung Association and American Heart Association. E-cigarettes continue to increase in sales (a projected $1.7 million in 2013) even while dropping in price. At the same time, there are no advertising restrictions for e-cigarettes. "Consumers are led to believe that e-cigarettes are a safe alternative to cigarettes, despite the fact that they are addictive, and there is no regulatory oversight ensuring the safety of the ingredients in e-cigarettes,” according to the Attorneys General’s letter. Read more on tobacco.

Expert: People Should Get Now-available Flu Vaccine As Soon As Possible
This season’s influenza vaccine is now available and people shouldn’t hesitate to go ahead and get it, according to Stephen Russell, MD, associated professor in the general internal medicine division at the University of Alabama at Birmingham and a lead physician at the university’s Medicine Moody Clinic. This year’s vaccine protects against four types of flu viruses (as opposed to the three of previous vaccines) and comes as either a traditional shot or a nasal spray. "Contrary to some beliefs, getting the flu shot in September is a good thing and will offer protection for the entirety of the flu season," he said. The U.S. Centers for Disease Control and Prevention recommends the vaccine for people ages 6 months and older, particularly for seniors, pregnant women, caregivers and people with chronic medical conditions. "Many people will say they do not need the vaccine, as they have never had the flu before, but that is like saying you don't need to wear your seatbelt because you have never had a wreck," Russell said. "You may have been fine in the past, but that should not offer security or protection for future exposures to the flu." Read more on influenza.

Study: Losing 10 Percent of Weight Can Greatly Reduce Arthritic Knee Pain, Put Off Knee Replacement
Losing just 10 percent of their weight could go a long way toward easing the knee pain from osteoarthritis in overweight and obese people ages 55 and older, according to a new study in the Journal of the American Medical Association. That would mean better knee function, improved mobility, enhanced quality of life…and reducing the odds of needed a knee replacement. "We've had a 162 percent increase in knee replacements over the last 20 years in people 65 and over, at a cost of $5 billion a year," said lead author Stephen Messier. "From our standpoint, we think this would be at least a good way to delay knee replacements and possibly prevent some knee replacements." The study tracked 454 overweight and obese people in three groups—diet-only, exercise-only and a combination—finding that people who did the combination were the most successful at losing weight and thus reducing knee pain. "We're not talking about people getting down to ideal body weight," said Patience White, MD, the Arthritis Foundation’s vice president of public policy and advocacy. "They just have to lose 10 percent of their total weight. Someone who is 300 pounds only needs to lose 30 pounds. I think that's within reach for people." Read more on obesity.

Sep 20 2013
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Public Health News Roundup: September 20

CDC: ‘Tips From Former Smokers’ Campaign Created Spikes in Quitline Calls, Website Visits
An additional 150,000 U.S. smokers called the tobacco cessation helpline 1-800-QUIT NOW as a direct result of the U.S. Centers for Disease Control and Prevention's (CDC) 2013 “Tips From Former Smokers” campaign, which ran for 16 weeks, according to CDC’s latest Morbidity and Mortality Weekly Report. That’s an increase of about 75 percent. It also generated approximately 2.8 million visits to the campaign website, or a nearly 38-fold increase. "The TIPS campaign continues to be a huge success, saving tens of thousands of lives and millions of dollars; I wish we had the resources to run it all year long," said CDC Director Tom Frieden, MD, MPH. "Most Americans who have ever smoked have already quit, and most people who still smoke want to quit. If you smoke, quitting is the single most important thing you can do for your health – and you can succeed!" A recent study in The Lancet concluded that the campaign helped as many as 100,000 people quit smoking permanently. Read more on tobacco.

FDA, NIH Award as Much as $53M for 14 Tobacco Regulation Research Centers
The U.S. Food and Drug Administration (FDA) and the National Institutes of Health (NIH) have joined together to award as much as $53 million in funding to create 14 Tobacco Centers of Regulatory Science (TCORS). The first-of-its-kind program will bring together a diverse array of scientists, public health experts, communications veterans and marketing experts to generate research to inform the regulation of tobacco products to protect public health. “While we’ve made tremendous strides in reducing the use of tobacco products in the U.S., smoking still accounts for one in five deaths each year, which is far too many,” said NIH Director Francis S. Collins, MD, PhD. “FDA/NIH partnerships like the Tobacco Centers of Regulatory Science keep us focused on reducing the burden and devastation of preventable disease caused by tobacco use.” Read more on research.

Overweight, Underweight Pregnant Women See More Complications and Longer Hospital Stays
Pregnant women who are either too thing or too heavy as measured by body-mass index (BMI) are at increased risk for complications and additional hospitalization, according to a new study in BJOG: An International Journal of Obstetrics and Gynaecology. Women with higher BMIs saw increased complications; severely obese women were three times as likely as normal weight women to have high blood pressure and gestational diabetes, as well as longer overall hospitalizations. Lower-weight women also had higher rates of additional hospitalization (8 percent) compared to normal-weight women, though not as high as the rates for overweight and obese women. The findings indicate the need to fine and implement new approaches to combating obesity. "Longer-term benefits of reducing maternal obesity will show improvements, not only in the health outcomes of mothers and their babies, but the workload and cost to current maternity services," said study co-author Fiona Denison, MD, of Queens's Medical Research Institute in Edinburgh. Read more on maternal and infant health.

Sep 13 2013
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Public Health News Roundup: September 13

Higher Education Linked to Better Obesity Rates for Women in Poorer Areas
Higher education is a key factor that helps protect women in economically disadvantaged areas from obesity, according to a new study in the American Journal of Health Promotion. “It is possible that education is a marker of an individual’s access to health information, capacity to assimilate health-related messages, and ability to retain knowledge-related assets, such as nutrition knowledge,” wrote the study’s authors. Previous studies have shown that women living in area with fewer economic resources have higher body mass index (BMI) than other women. The results indicate that both low education and personal income should be addressed by obesity prevention initiatives. Read more on obesity.

Regular Exercise May Help Decrease Depression
Increases in exercise may be linked to decreases in depression, according to a new review of existing research by The Cochrane Library. The researchers found people with depression who also exercised saw a “moderate” reduction in their symptoms when compared to people who did instead used relaxation techniques or received no treatment. Antidepressant medications and psychotherapy are the most common treatments for depression, which affects about 10 percent of Americans, according to the U.S. Centers for Disease Control and Prevention. More research is needed to better understand the relationship between exercise and depression symptoms. Still, Madhukar Trivedi, MD, a professor of psychiatry at the UT Southwestern Medical Center in Dallas, who was not a part of the study, said one of the keys is making sure patients stick with the exercise regimen. "Once people are prescribed exercise or they choose exercise, the big challenge is to make the exercise real," he said. "If the recommendation from the treating clinician is that you should be exercising with some frequency and intensity…it's important that the patient follow that regimen week after week.” Read more on mental health.

Predominantly Black Nursing Homes Deliver Lower Levels of Care, Perform Worse Financially
Nursing homes that are predominantly populated by black residents deliver overall poorer care and are less successful financially than homes with few or not minority residents, according to a new study in Health Services Research. The study looked at issues such as the ratio of nursing staff to patients, success in preventing pressure ulcers, help with walking, help with getting out of bed, prevention of urinary tract infections, the incidence of medication errors and citations by governmental agencies. However, the study noted that black and white patients living in the same facilities received equal treatments, meaning the disparity is not due to any biases of health care workers. One factor leading to the disparity could be the fact that older black Americans are more likely to rely on Medicaid, which means lower reimbursement rates. Still, Latarsha Chisholm, assistant professor at the University of Central Florida and study author, believes something more must be at play. "It isn't only the financial performance [of nursing homes] that affects performance," she said. "There has to be something else affecting quality. I want to understand what management practices promote improved care in nursing homes with high proportions of minorities that don't have disparities in care.” Read more on health disparities.

Sep 12 2013
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Public Health News Roundup: September 12

Study: 60 Percent of Uterine Cancer Cases are Preventable
Approximately 60 percent of U.S. uterine cancer cases are preventable thorough regular physical activity and maintaining a healthy weight, according to a new study from the American Institute for Cancer Research (AICR) and World Cancer Research Fund International. That comes out to nearly 30,000 cases per year; endometrial cancer is the most common cancer of the female reproductive system, ahead of both ovarian cancer and cervical cancer. "Body fat can produce hormones that promote cancer development," said Alice Bender, nutrition communications manager for AICR. "We also know that body fat is linked to chronic inflammation, which produces an environment that encourages cancer development." The study also found various dietary choices that influence cancer risk because of the way they influence hormones such as estrogen and insulin. For example, drinking one cup of coffee a day can reduce the risk of endometrial cancer by 7 percent, while eating sugary items and processed grains can increase it. Read more on cancer.

Overweight, Obese People More Likely to Suffer from Migraines
Migraines can now be added to the long list of medical conditions more likely in people who are overweight or obese, according to a new study in the journal Neurology. Researchers found the painful, often-debilitating headaches were twice as common for obese people as they were for people of normal weight. As many as 15 percent of people suffer from episodic migraines and approximately 32 percent of people with the migraines were obese. "This suggests patients and doctors need to be aware that obesity is associated with an increased risk of episodic migraine and not wait until a patient has chronic migraine to address healthy lifestyle choices, such as diet and exercise, and to choose medications that impact weight with care," said lead researcher Lee Peterlin, MD, from the Johns Hopkins University School of Medicine, according to Reuters. While further research is needed to determine causation, the study results do provide yet one more reason to make healthy lifestyle changes. Read more on obesity.

Anger, Irritability May Be Signs of More Severe, Chronic Depression
Irritability and anger may indicate more complex, chronic and severe forms of major depression, according to a new study in JAMA Psychiatry. Symptoms of irritability and anger during a major depressive episode (MDE) appear to be clinical markers for a significantly more complex, chronic, and severe form of major depressive disorder, a new study indicates. Researchers found that people with MDEs who also exhibit anger and irritability were more likely to have increased severity of their depression, longer bouts of depression, lower impulse control and a more chronic long term course of illness. The findings indicate that people who exhibit these behaviors need closer clinical monitoring that "should include specific strategies to address anger management issues, as well as the frequently associated problems of comorbid anxiety disorder, substance abuse disorder, poor impulse control, and psychosocial impairment when these are present." Read more on mental health.

Sep 10 2013
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Public Health News Roundup: September 10

CDC’s ‘Tips From Former Smokers’ Campaign Helped 200,000 Quit
The U.S. Centers for Disease Control and Prevention’s (CDC) three-month “Tips From Former Smokers” national ad campaign helped more than 200,000 Americans quit smoking immediately, with an estimated 100,000 expected to quit permanently, according to a new CDC study in The Lancet. About 1.6 million smokers attempted to quit because of the campaign, which featured powerful—and real—stories of former smokers living with smoking-related diseases and disabilities, which encouraging people to call the toll-free 1-800-QUIT-NOW. The results far exceeded CDC’s initial goals. “Quitting can be hard and I congratulate and celebrate with former smokers—this is the most important step you can take to a longer, healthier life,” said CDC Director Tom Frieden, MD, MPH. “I encourage anyone who tried to quit to keep trying—it may take several attempts to succeed.’’ Read more on tobacco.

White House Honors ‘Champions of Change’ in Public Health, Prevention
The White House this week is honoring eight “Champions of Change” in the world of prevention and public health. The weekly event is meant to highlight and honor Americans who “are doing extraordinary things in their communities to out-innovate, out-educate, and out-build the rest of the world.” This week focuses on people who are working in the field of public health on everything from childhood obesity to reducing health disparities to fighting healthcare-acquired infections. “These leaders are taking innovative approaches to improve the health of people in their communities—and showing real results,” said Jeffrey Levi, PhD, executive director of Trust for America’s Health. “Prevention is one of the most common-sense ways we can save lives and reduce healthcare costs, and the efforts of these champions show how to put prevention to work in effective ways.” Read more on faces of public health.

Small Changes to Kids’ Routines Can Reduce Childhood Obesity
Small changes in the home environment, such as limiting the time spent in front of the television and increasing the time spent sleeping, can help reduce childhood obesity, according to a new study in the journal Pediatrics. The simple routine changes led to a slower rate of weight gain in children ages 2 to 5 (the children obviously still gaining weight overall because they were growing). After six months on the new routine, participants saw their body mass index (BMI) drop, for a healthier rate of weight gain. About 17 percent of U.S. youth are obese, with lower-income kids at highest risk, according to the U.S. Centers for Disease Control and Prevention. Thomas Robinson, MD, a professor of pediatrics and medicine at Stanford University and Lucile Packard Children's Hospital at Stanford, who was not involved in the study, said the findings were significant for the fight against childhood obesity. "These behaviors and BMI have not been easy to change in a world where junk food and screen time are so heavily marketed, and families are dealing with tremendous financial and social challenges," he said. "I think it is exciting to see studies like this one showing positive results." Read more on obesity.