Virtual Mentor. April 2010, Volume 12, Number 4: 316-320.

Policy Forum

What’s Wrong with the U.S. Approach to Obesity?

The U.S.’s and U.K.’s efforts to combat obesity reflect underlying differences in the two countries’ understandings of obesity’s causes.

Barry M. Popkin, MS, PhD

Introduction

Overweight and obesity levels in the U.S. and the U.K. are fairly similar [1]. In both, more than two-thirds of adults are overweight and obese. At the upper levels—the 95th percentile of the body mass index (BMI) distribution—U.K. women are approaching the size of the United States’ heaviest individuals [2]. The U.S. has a slightly higher prevalence of obesity (as distinct from overweight); at the rate of increase of the past decade, however, U.K. adult women will be as heavy as U.S. women at the 95th percentile in a decade. Though the U.S. population is not significantly fatter overall than the U.K. population, we are in far worse shape in that our societal views of and approach to addressing obesity are less effective.

Learning Objective Understand how efforts to combat obesity in the U.S. and U.K. reflect underlying differences in the two countries' understandings of the causes of obesity.

The major difference is that the U.S. focuses on psychological rather than sociological origins for problems. We blame the individual—sloth and gluttony are the causes of obesity—and conclude that individual medical treatment is needed if the individual cannot change. In contrast, the U.K. views the problem from a sociological perspective, instituting systematic changes to the toxic food environment felt to contribute to obesity in their nation.

Why the U.S. Is Worse Off

At the start of the new millennium, the two countries are not so different. I will briefly review how each has tackled the child, adult, and overall national obesity epidemic.

The U.K.’s sociological perspective. The U.K. introduced the Foresight Tackling Obesities: Future Choices Project in 2005, the goal of which was to produce a sustainable response to obesity in the U.K. over a 40-year period [3-5]. This systematic government effort began with quantitative modeling of the increase in obesity, its economic effects, and the impact on the national health system [6]. It then created a fairly complex systems map of the causes of energy imbalance, which laid out societal as well as individual causes of food consumption and activity. From this came a broad examination of all potential leverage points with the causal linkages weighted according to their contribution.

Similar research has been done in the U.S. by the Institute of Medicine and others. The major difference is that the U.K.’s was a government initiative, leading directly to a dialogue with all the major stakeholders and policymakers in the U.K. It also emphasized the environmental causes. A strong case was made for the necessity of environmental changes to support individual change. The U.K.’s goal is to be the first developed nation to reverse the rising tide of obesity.

A partial list of actions taken in the U.K. based on Foresight’s obesity research provide some sense of the thinking and, significantly, the funding that supported these initiatives:

  • Junk food such as chocolate bars and chips have been banned from primary and secondary school vending machines and sharply curtailed in cafeterias; beverages are restricted to water, milk, and juice [7]. School meal guidelines have become increasingly nutrition-oriented in recent years [8].
  • Advertisement of unhealthy foods has been banned from children’s television (and adult shows watched by children) in the U.K. [9].
  • Children aged 11 to 14 will be required to receive classes about food, its preparation, and handling starting in 2011( cooking facilities are currently being constructed where needed) [10].
  • The U.K. food industry is being encouraged to adopt the “traffic light” nutrition information system for package labels [11].
  • Some local governments have banned fast food restaurants near schools and parks [12].
  • The ministry of health has undertaken a trial project to stock and promote produce in convenience stores in deprived areas [13].
  • The government routinely conducts nutrition surveys [14, 15].

The U.K. continues to study causes and solutions and remain active in addressing obesity throughout the life cycle.

The U.S.’s psychological perspective. The Institute of Medicine and many others have mapped causal networks similar to Foresight’s [16]. Members of Congress have discussed the need to regulate beverages and vending in the schools, among many other steps. There has been, however, no systematic approach involving any major environmental changes in the U.S. Here are some of the actions taken in the U.S. to address obesity:

  • Dozens of states have mandated more physical education classes, but only a few have provided funding [16];
  • Neither state nor federal government has banned vending and promoted drinking water in schools [17];
  • No national or other media bans or controls exist to protect children;
  • Minimal federal funding has been put toward improving nutrition in school cafeterias [17];
  • A number of state and local governments have implemented subsidies to provide supermarkets in food deserts (communities with limited access to affordable, healthy food), but the research backing these activities is limited [18];
  • One or two municipalities have supported providing education and improved facilities and food supplies to food stores in poor areas [18];
  • The promotion of sustainable agriculture has led the government to allot major funding for farmers’ markets for the poor [18].

Many U.S. actions, such as enhancing farmers’ markets or subsidizing selected foods to be used in school lunch meals, were taken based on political support rather than proven usefulness of the initiative to public health; others were token gestures that received only minimal funding; and there has been no systematic effort aimed at any age group. Unlike the U.K.’s systematic banning of vending in schools, even the Institute of Medicine (IOM) reports and analyses emphasize limiting, rather than banning, some sugary beverages. In contrast to the government’s inconsistent efforts, the media have made strides in fighting obesity by repeatedly bringing public attention to some issues, such as sugar-sweetened beverages’ effects on children’s health, causing the beverage industry to respond by emphasizing comparatively less harmful sports drinks and juices.

In the end, the environment in the U.S. has not changed significantly, despite a decade of discussion about child obesity; only small-scale, localized efforts have been made. The treatment of this issue has been unlike the successful campaigns for seat belt regulations, water fluoridation, and tobacco prevention—all of which were seen as societal issues requiring regulations, taxes, and systematic efforts.

Ethical Implications

Is it unethical to allow a generation of children to grow up in an environment that fosters obesity and diabetes? Is it unethical to stand by and do nothing while the U.K. makes systematic changes? Is the food industry, arguably the entity with the most interest in the status quo, behaving unethically? It is critical that the medical profession consider obesity as seriously as we do diabetes, fatty liver disease, hypertension, osteoarthritis, and many other major chronic conditions that are depriving future generations of a healthy life.

References

  1. Popkin BM, Conde W, Hou N, Monteiro C. Is there a lag globally in overweight trends for children compared with adults? Obesity (Silver Spring). 2006;14(10):1846-1853.
  2. Popkin BM. Recent dynamics suggest selected countries catching up to U.S. obesity. Am J Clin Nutr. 2010;91(1):284S-288S.
  3. Kopelman P. Symposium 1: Overnutrition: consequences and solutions: Foresight Report: the obesity challenge ahead. Proc Nutr Soc. 2009;69(1):80-85.
  4. McPherson K, Marsh T, Brown M. Foresight report on obesity. Lancet. 2007; 370(9601):1755; author reply 1755.
  5. King D. Foresight report on obesity. Lancet. 2007;370(9601):1754; author reply 1755.
  6. UK Government Office for Science. Foresight: Tackling Obesities: Future Choices—project report. 2nd ed. http://www.foresight.gov/uk/Obesity/17.pdf. Accessed March 8, 2010.
  7. Paton G. School ban on fatty food to beat obesity. Telegraph. September 3, 2009. http://www.telegraph.co.uk/education/6127641/School-ban-on-fatty-food-to-beat-obesity.html. Accessed March 4, 2010.
  8. Campbell S. School meal guidelines tightened. BBC News. September 3, 2009. http://news.bbc.co.uk/2/hi/uk_news/education/7595913.stm. Accessed March 4, 2010.
  9. Restrictions on TV advertising of foods to children come into force [news release]. UK Food Standards Agency; March 31, 2007.  http://www.food.gov.uk/news/newsarchive/2007/mar/tvads. Accessed March 4, 2010.
  10. Cookery to be compulsory. BBC News. January 22, 2008. http://news.bbc.co.uk/2/hi/uk_news/education/7200949.stm. Accessed March 4, 2010.
  11. UK Food Standards Agency. Traffic light labeling. http://www.eatwell.gov.uk/foodlabels/trafficlights/. Accessed March 4, 2010.
  12. Campbell D. Takeaway ban near schools to help fight child obesity. Observer. February 28, 2010. http://www.guardian.co.uk/society/2010/feb/28/takeaway-food-school-ban. Accessed March 4, 2010.
  13. Tibbetts G. Corner shops to stock more fruit and vegetables in healthy eating campaign. Telegraph. August 13, 2008. http://www.telegraph.co.uk/news/uknews/2550464/Corner-shops-to-stock-more-fruit-and-vegetables-in-healthy-eating-campaign.html. Accessed March 4, 2010.
  14. UK Food Standards Agency. Low Income Diet and Nutrition Survey. http://www.food.gov.uk/science/dietarysurveys/lidnsbranch/. Accessed March 4, 2010.
  15. MRC Collaborative Centre for Human Nutrition Research. National Diet and Nutrition Survey. http://www.mrc-hnr.cam.ac.uk/working-with-us/national-diet-and-nutrition-survey.html. Accessed March 4, 2010.
  16. Institute of Medicine. Preventing Childhood Obesity: Health in the Balance. 1st ed. Washington, DC; National Academies Press: 2005.
  17. Institute of Medicine. Nutrition Standards for Foods in Schools: Leading the Way toward Healthier Youth. Washington DC; National Academies Press: 2007.
  18. Institute of Medicine. The Public Health Effects of Food Deserts: Workshop Summary. Washington DC; National Academies Press: 2009.

Barry M. Popkin, MS, PhD, is the Carla Smith Chamblee Distinguished Professor of Global Nutrition at the University of North Carolina-Chapel Hill. He directs the UNC-CH’s Interdisciplinary Center for Obesity and works intensively in both the biomedical and social science arenas on a global basis. He developed the concept of the “nutrition transition” using his series of U.S. and international cohort studies of the factors underlying dietary and physical activity/inactivity patterns and their effects on health.

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