Tag Archives: obesity

Root Cause Analysis

Possible Link Between Antibiotics and Obesity

By Kim Smiley

A study recently published in the International Journal of Obesity found that infants given antibiotics before six months of age were 22 % more likely to be overweight between the ages of 10 months and 3 years.  Researchers believe this may be because the natural balance of bacteria in their digestive tracts is altered by the antibiotics.

Obesity has long been assumed to be a matter of too much food into the body while too few calories are burned, but new studies. including the recent one finding a link between use of antibiotics early in life and body weight later in childhood,  are suggesting that the issue may be more complicated than it appears on the surface.

Scientists are still studying how bacteria in human digestive tracts affect how the body processes food, but many researchers believe that the balance of bacteria plays a role in how the body absorbs calories.  The amount of calories that a body absorbs from the same amount of identical food may not be a constant.  More studies are needed to understand the relationship between bacteria in the gut and body weight, but studies done so far are intriguing.

The link between antibiotics and higher body mass remained even when researchers controlled for factors such as what the baby ate, the weight of a baby’s parents, whether the mother smoked while pregnant, and the family’s socioeconomic status.  Researchers did note that the study found an association and not a cause-effect link and that further studies are needed, but there seems to be a relationship between how antibiotics affect the body and body mass.

More research is needed to fully understand this issue, but this study is an interesting step to better understanding the causes of childhood obesity.  On the downloadable PDF, we have created a Cause Map, or visual root cause analysis, to show the possible cause-and-effect relationships between use of antibotics in early enfancy and childhood obesity.

In this specific study used to build this example, the researchers were quick to point out that infants should be given antibiotics if they are needed, but it’s important to understand how the medication may be affecting bodies, especially very young bodies.

To view a Cause Map of this issue, click on “Download PDF”.

Root Cause Analysis

America’s Food Deserts

By Kim Smiley

A food desert is a community that lacks adequate access to healthy, nutritious food because they don’t have sufficient stores that sell these items at an affordable price, such as a supermarket. Both isolated rural areas and low income urban neighborhoods are typical locations where a food desert might exist in the United States.  In these locations, residents typically must rely on the food that is available nearby, usually small convenience stores and fast food restaurants.  Smaller convenience type stores generally don’t offer a variety of fresh food and vegetables and the prices are typically higher.  Many times the result is a less healthy diet and the potential health problems that go along with it.

A significant percentage of the US population lives without relatively easy access to a supermarket.  In a report to Congress, the USDA stated that 2.2 percent of the US population lives more than a mile from a supermarket and does not have access to a vehicle.  That’s 2.3 million people who constantly struggle with the logistics of buying groceries, even before the rising cost of food is considered.

How did food deserts come to exist?  In a country as wealthy and as industrialized as the United States, how is it that so many people don’t have access to a grocery store?

Food deserts came to exist because companies followed demand and built grocery stores where they would be most profitable, which is not typically low income urban locations or very rural areas.  Low income families typically have less money to send on groceries so more supermarkets were built in the more profitable, affluent neighborhoods than in poorer communities.  Some low income urban areas are also associated with higher crime rates so companies were hesitant to build in those areas.  People with lower incomes are also less likely to have access to a vehicle so the problem of buying food is compounded when the supermarkets are farther away from the low income communities.  Supermarkets are also less likely to be built in low population density rural areas because there are fewer potential customers and the stores aren’t as profitable.

While it’s relatively easy to identify why food deserts came to be, it’s still a tricky problem to solve.  Some groups have suggested that the government should provide subsidies to companies that build stores in food deserts.  Others are working to bring in foods to the people living in food deserts.

If you’re curious about where food deserts exist in the US, click here to view a map of the locations.  Click here to read a previous blog that discussed how food deserts are a cause of childhood obesity.