Lack of stores with fresh foods linked to signs of early heart disease

Living in poor neighborhoods has been linked to increased heart risk, and a new U.S. study suggests the lack of access to fresh, healthy foods may be to blame.

“Previous studies have found relationships between neighborhood characteristics and cardiovascular disease,” said lead author Jeffrey Wing of Grand Valley State University in Grand Rapids, Michigan. “Finding that the density of healthy food stores was the only factor among those tested that consistently was related to slowing the progression of coronary calcium build-up was interesting in that we didn’t see the same relation with other neighborhood features,” like recreation centers, Wing told Reuters Health by email.

Coronary artery calcium buildup hardens the arteries and causes atherosclerosis, which underlies many cases of heart disease. Heart disease is the leading cause of death in the U.S., responsible for one in every four deaths, according to the Centers for Disease Control and Prevention.

The researchers analyzed data from a large multiethnic study of atherosclerosis, in which 6,000 adults had CT scans for coronary artery calcium at the start, and at least once more after a 12-year follow-up period. Almost 90 percent of participants had three CT scans over time, with an average of three to four years between each scan.

Researchers also recorded neighborhood features like recreational facilities, healthy food stores, walking environments, healthy food stores and social environment.

They found that people with healthy food stores within one mile of their homes had slower coronary artery calcium buildup over time than those who lived further away from fresh food sources, according to the results in Circulation.

Coronary calcium in itself is not a health endpoint for patients, Wing noted.

“Coronary calcium, as we used it, was a marker for subclinical disease,” he said. That means the study team was trying to get at “future cardiovascular outcomes” like heart attacks and strokes without having to wait for those endpoints to actually occur, he said.

“Though there has been a fair amount of research on this topic, researchers don’t have one consistent way of measuring access to fresh food and that can make it difficult to come up with a good estimate,” said co-lead author Ella August of the University of Michigan School of Public Health in Grand Rapids.

“Previous studies have found that predominantly black neighborhoods have fewer supermarkets compared to predominantly white neighborhoods in the U.S.,” she said.

Some options for providing fresh food in such “food deserts” have been implemented on a small scale, like mobile urban produce vendors that drive through city streets offering apples, lettuce and carrots, August told Reuters Health by email.

“Michelle Obama has also made some efforts to increase funding for urban supermarkets, but these have been challenging to implement,” August said. “We need to work harder to find ways to provide access to healthy food to everyone in this country.”

“These findings suggest points of intervention on a neighborhood level that may be particularly impactful for improving health outcomes of its residents,” Adelaida M. Rosario, a health specialist at the National Institutes of Health, and Dr. Eliseo J. Perez-Stable, director of the National Institute on Minority Health and Health Disparities, write in an accompanying editorial.

Quitting smoking, being physically active and engaging in other healthy behaviors are other things individuals can do to reduce heart disease risk if they have limited access to healthy food alternatives, Wing said.

SOURCE: bit.ly/1XIhahI Circulation, online August 15, 2016.

Living in poor neighborhoods has been linked to increased heart risk, and a new U.S. study suggests the lack of access to fresh, healthy . . .

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