Physically Demanding Jobs Linked to Unhealthy Eating: Why Workers Crave Sugary, Fatty Foods

November 9, 2013
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unhealthy eating researchExploring the relationship between health and education, a team of researchers investigated the diets and behaviors of German adults from a range of socioeconomic backgrounds.

unhealthy eating researchExploring the relationship between health and education, a team of researchers investigated the diets and behaviors of German adults from a range of socioeconomic backgrounds. They soon discovered that adults with a lower level of education consume more energy-dense foods — junk food — than their more educated peers. But then again, they drank less alcohol as well.

“Higher levels of physical work activity among adults with lower education may partly explain why they consume more sugar-rich food,” the authors wrote. Oddly, they also observed such ‘class differences’ seemed to disappear at retirement age. “No significant associations between education and energy-dense food intake were observed in the retirement-age group,” they wrote in their study.

Occupation and Behavior

The German National Health Interview and Examination Survey 1998 involved 7,124 participants, between ages 18 and 79. By repeatedly collecting data on the health status, health-related behavior, and living conditions of adults in Germany, the researchers surmised they would gain a window into the occurrence of widespread diseases, risk factors, and healthcare problems. Not only did the survey encompass more routine healthcare data, it also included complete information on education and nutrition variables for 6,767 persons.

Using this tool, then, the researchers analyzed the association between education levels and consumption of high-sugar foods, high-fat foods, fruits and vegetables, and alcohol. Within the context of the survey, sugar-rich foods included cakes, biscuits, pastries, confectionery products such as sweets, pralines, chocolate, and soft drinks, including lemonade, fruit drinks, pop, cola, and tonic water. Fat-rich foods included TV dinners, fried or deep-fried potatoes, fried sausage, curry sausage, hamburgers, kebabs, and pizza. Calculations were adjusted not only for gender, but also for age, region (former East/West Germany), occupation, income, and influencing factors such as physical activity indicators.

“Men and women with only a primary education had a more frequent intake of sugar-rich and fat-rich foods and a less frequent intake of fruit and vegetables and alcohol than people with a tertiary education,” the authors concluded. Yet, they also noted that physical work activity partly explained the relationship between education and junk food. In particular, the link between education and diet showed itself most vividly among men, who also more frequently reported greater physical work activity when compared to women. Interestingly, these differences evaporated once people reached retirement age.

The authors also hypothesized another reason the more highly educated may eat less junk food. Since alcohol also contributes to energy intake, the educated may feel less inclined to eat high-sugar and high-fat foods simply because they are already drinking their calories.

 

Source: Finger JD, Tylleska T, Lampert T, Mensink GBM. Dietary Behaviour and Socioeconomic Position: The Role of Physical Activity Patterns. PLOS One. 2013.

(photo: shutterstock)

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