Making Healthy Foods Accessible is Not Enough to Tackle Obesity

by Himabindu Venkatakrishnan on  February 4, 2014 at 12:14 PM Lifestyle News
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The improving access to healthy foods, an initiative by Government to curb obesity in the US, has not been very successful, reveals a research by the London School of Hygiene & Tropical Medicine.
 Making Healthy Foods Accessible is Not Enough to Tackle Obesity
Making Healthy Foods Accessible is Not Enough to Tackle Obesity

Disadvantaged neighbourhoods often lack access to low-cost healthy foods, which has led to recent US policy initiatives that focus on increasing the number of local supermarkets through grants and loans. These programmes include the $400 million Healthy Food Financing Initiative, promoted by the White House Task Force on Childhood Obesity, and New York City's FRESH programme, which continue to be rolled out in urban areas of the US. But to date, there have been no formal evaluations of how effective these programmes actually are at improving diet and reducing obesity.

Now a study being published in the February issue of Health Affairs has provided the first US-based evidence that building new food retail stores is not sufficient to improve the diets of low-income residents.

The researchers investigated the impact of a new supermarket opening in a low-income community in Philadelphia, classified as a "food desert" by the US Department of Agriculture. The supermarket is part of the Pennsylvania Fresh Food Financing Initiative, which has been responsible for 88 new or expanded food retail outlets in the area.After studying around 650 residents over a period of four years, the results showed that although there were improvements in residents' perceptions of food accessibility, these did not translate into significant changes in diet.

Few residents chose to shop at the new supermarket once it opened, with only 27% of residents adopting it as their main food store and just 51% using it for any food shopping at all. Despite the programme's objectives of improving diet, exposure to the new supermarket had no significant impact on reducing obesity or increasing daily fruit and vegetable intake.These findings mirror the results of previous UK-based studies, which also found no significant evidence for any effect on diet. However, the authors note that additional studies are required to confirm these findings in other populations.

Lead author Dr Steven Cummins, Professor of Population Health at the London School of Hygiene & Tropical Medicine, said: "US policymakers have implemented policies and interventions that encourage the location of supermarkets and grocery stores to improve diet and reduce diet-related diseases such as obesity and diabetes. Such policies form a central part of many US government schemes such as Michelle Obama's Lets Move Childhood Obesity programme, and are high on the policy agenda in many other nations. However we don't know whether these kinds of policies are effective in improving diet.

"Though these interventions are plausible and well-meaning, this study suggests that they are only effective in taking us part of the way in changing dietary behaviour - in order to realize their full potential we need to better understand how to translate changes in perception to changes in behaviour."

The researchers suggest that the development of new food retail stores needs to be combined with complementary initiatives that focus on price promotions, marketing and branding to encourage greater use of these new stores.

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