Nutr Res Pract.  2016 Dec;10(6):606-615. 10.4162/nrp.2016.10.6.606.

Nutritional quality of lunches consumed by Korean workers: Comparison between institutional and commercial lunches

Affiliations
  • 1Department of Food and Nutrition, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea. hoonyoon@snu.ac.kr
  • 2Research Institute of Human Ecology, Seoul National University, Seoul 08826, Korea.

Abstract

BACKGROUND/OBJECTIVES
The nutritional quality of lunches is an important factor related to workers' health. This study examined the nutritional quality of Korean workers' lunches with a focus on comparing institutional and commercial lunches.
SUBJECTS/METHODS
The data from a 1-day, 24-hour dietary recall from the 5(th) Korea National Health and Nutrition Examination Survey (2010-2012) were analyzed. A total of 2,192 subjects aged 19 to 64 years, who had consumed lunches served by institutional or commercial food service vendors, were included for analysis. The nutritional quality of the lunches of the institutional lunch group (n=626) and the commercial lunch group (n=1,566) was compared in terms of the number of servings, food groups, nutrient intake, Nutrient Adequacy Ratio (NAR), and Mean Adequacy Ratio (MAR).
RESULTS
The NAR and MAR were significantly higher in the institutional lunches than in the commercial lunches, but more than half of workers in both groups obtained over 65% of their energy from carbohydrate. The average sodium intake from the lunches exceeded the daily intake goal (2,000 mg) in both groups. More than half of workers in both groups presented less than one-third of their respective recommended daily intake of riboflavin and calcium. With the exception of riboflavin, the nutrient intake from lunches accounted for more than 35% of the daily nutrient intake.
CONCLUSIONS
The overall nutritional quality of institutional lunches was higher than that of commercial lunches. However, institutional lunches had room for improvement in terms of nutritional quality.

Keyword

Nutrition surveys; food services; workplace; workers; lunch

MeSH Terms

Calcium
Commerce
Food Services
Korea
Lunch*
Nutrition Surveys
Nutritive Value*
Recommended Dietary Allowances
Riboflavin
Sodium
Calcium
Riboflavin
Sodium

Figure

  • Fig. 1 Proportions of Korean workers with deficient nutrient intake from lunches according to the type of food service The data were analyzed using the complex sample module. The values are the percentages of people with nutrient intake less than 1/3 of the estimated average requirement. 1) Workers eating lunches served at workplace food service 2) Workers eating commercially-prepared lunches, including lunch boxes and restaurant meals ** Significantly different between lunch groups at α = 0.01 by χ2 test *** Significantly different between lunch groups at α = 0.001 by χ2 test

  • Fig. 2 Distritubtion of Korean workers' macronutrient intake status according to the type of food service The data were analyzed using the complex sample module. Deficient: < 7% of energy intake from protein, < 15% of energy intake from fat, < 55% of energy intake from carbohydrate Adequate: 7-20% of energy intake from protein, 15-30% of energy intake from fat, 55-65% of energy intake from carbohydrate Excessive: > 20% of energy intake from protein, > 30% of energy intake from fat, > 65% of energy intake from carbohydrate 1) Workers eating lunches served at workplace food service 2) Workers eating commercially-prepared lunches, including lunch boxes and restaurant meals * Significantly different between lunch groups at α = 0.05 by χ2 test *** Significantly different between lunch groups at α = 0.001 by χ2 test


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