Changes in Food and Nutrient Intakes of College Students between 1999 and 2009

Jang, Han Byul; Lee, Hwa Young; Han, Young Hee; Song, Jeehye; Kim, Ki Nam; Hyun, Taisun

doi:10.5720/kjcn.2011.16.3.324

Cited by 23 publications

(4 citation statements)

References 5 publications

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“…Furthermore, changes in the food sources of energy intake are related to changes of the nutrient sources of energy intake, as demonstrated by the increases of energy intake from fat and animal foods and the decreases of energy intake from carbohydrate and plant foods. These trends are similar to those reported in other studies conducted in Korean adults [2526] and other Asian [67]. In Korea, socio-economic growth [2728] and socio-demographic changes, such as the increase in prevalence of single household [29] and decrease in the proportion of unemployed women (Table 1), have been observed.…”

Section: Discussionsupporting

confidence: 87%

Trends in energy intake among Korean adults, 1998-2015: Results from the Korea National Health and Nutrition Examination Survey

Yun

Kim

2017

Nutr Res Pract

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BACKGROUND/OBJECTIVESAssessing changes in energy intake and dietary sources is important to understand trends in the prevalence of obesity. Thus, we examined trends in energy intake and its nutrient and food sources in Korean adults from 1998 through 2015.SUBJECTS/METHODSThis study included 70,769 subjects aged ≥ 19 years who completed a nutrition survey. Subject data were obtained from the 1998, 2001, 2005, 2007-2009, 2010-2012, and 2013-2015 Korea National Health and Nutrition Examination Surveys. Dietary intake was assessed by a 1-day 24-hour recall method.RESULTSIn men, the daily energy intake significantly increased from 2,196 kcal in 1998 to 2,489 kcal in 2013-2015 (P for trend < 0.0001). However, the daily energy intake among women did not change significantly over the same period (P for trend = 0.5772). The percentages of energy intake from animal foods (e.g., meat and milk) and beverages increased during the study period in both men and women. However, the percentage of energy intake from plant foods decreased due to a marked decrease in the intake of white rice. Changes in food sources of energy intake led to changes in the nutrient sources of energy intake; for example, the increase of energy intake from fat and decrease of energy intake from carbohydrate.CONCLUSIONSThis study suggests that since 1998, energy intake has increased among Korean adult men, but not among women. However, the composition of food and nutrient sources of energy intake has changed in both men and women. Energy intake and its nutrient and food sources should continue to be monitored regularly in the Korean adult population.

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Section: Discussionsupporting

confidence: 87%

Trends in energy intake among Korean adults, 1998-2015: Results from the Korea National Health and Nutrition Examination Survey

Yun

Kim

2017

Nutr Res Pract

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“…The decisions they make in their twenties may influence health later in life [9]. However, inadequate nutrient intakes and poor dietary habits, as well as unhealthy behaviors, such as smoking and alcohol drinking among college students, have been reported [9-11]. When dietary intakes of Korean college students were compared in 1999 and 2009, intakes of energy and most other components including fat and cholesterol were significantly higher in 2009 compared to 1999, but intakes of vitamin C and folate were similar and dietary fiber intake was significantly lower [11], indicating that their intakes of fruits and vegetables have been decreased over time.…”

Section: Introductionmentioning

confidence: 99%

“…However, inadequate nutrient intakes and poor dietary habits, as well as unhealthy behaviors, such as smoking and alcohol drinking among college students, have been reported [9-11]. When dietary intakes of Korean college students were compared in 1999 and 2009, intakes of energy and most other components including fat and cholesterol were significantly higher in 2009 compared to 1999, but intakes of vitamin C and folate were similar and dietary fiber intake was significantly lower [11], indicating that their intakes of fruits and vegetables have been decreased over time. Chen et al [12] showed that the mean serum folate concentrations were the lowest and the prevalence of folate deficiency and insufficiency was the highest in both men and women aged 19-30 years compared to other age groups older than 31 years.…”

Section: Introductionmentioning

confidence: 99%

Intake and blood concentrations of folate and their association with health-related behaviors in Korean college students

et al. 2013

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The purpose of this study is to assess folate intake, and serum and red blood cell (RBC) folate concentrations, and investigate the association between folate status and health-related behaviors among Korean college students. A total of 169 students, aged between 18 and 27 years, participated in this study. Dietary intake data were collected by trained interviewers using a 24-hour recall method for three non-consecutive days in 2009. Information on health-related behaviors was obtained by a self-administered questionnaire. Serum and RBC folate concentrations were measured by microbiological assay. The average intakes of folate were 456 µgDFE and 347 µgDFE in male and female students, respectively. While the average serum folate concentration was significantly lower in male students (8.9 ng/mL) compared to female students (12.5 ng/mL), RBC concentrations were not significantly different between male (398.6 ng/mL) and female students (405.3 ng/mL). In male students, low serum folate concentrations were associated with total folate intake less than the Estimated Average Requirement, non-use of folic acid supplements, smoking, alcohol drinking at least once a week and low physical activity. In female students, low serum folate concentrations were associated with smoking and alcohol drinking at least two drinks at a time and BMI ≥ 25. Alcohol drinking and low physical activity were also associated with low RBC folate concentrations in both male and female students. In order to improve folate nutritional status of college students, the practice of desirable health-related behaviors, such as non-smoking, moderate alcohol drinking, regular physical activity, and maintenance of healthy BMI should be encouraged along with consumption of folate-rich foods and supplements.

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“…In Korea, yam tubers are marketed in juice, slice, or powder form to supplement the treatment of indigestion, diabetes, constipation, and other conditions. Yam tubers contain steroidal saponins (furostanol and spirostanol glycosides), batasin I, II, and III, starch, glycoproteins (mucin, mucilage), minerals (K, P, Ca, Mg, Fe, Cu, Co), phytosterols (sitosterol, stigmasterol, and campesterol), and other components [1,2]. Steroidal saponins are the most important bioactive compounds in yam tubers and have biological functions, such as anticancinogenic [3][4][5], cardioprotective [6], antithrombotic [7], hypocholesterolemic [8], hepatoprotective [9], growth hormone-promoting [10], antiviral [11], antifungal [12], antiobesity [13], and antineoplastic effects [14].…”

Section: Introductionmentioning

confidence: 99%

Development of an analytical method for yam saponins using HPLC with pulsed amperometric detection at different column temperatures

Kwon

Choi

Yoo

et al. 2013

J of Separation Science

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Yam saponins (dioscin, gracillin, protodioscin, and protogracillin) were analyzed with three different C18 columns at incremental column temperatures from 15 to 45°C to investigate the effect of temperature on the retention and resolution of yam saponins. At low temperature, yam saponins showed decreased retention times and improved resolutions in the C18 columns. In the Kinetex C18 column at 15°C, the four saponins achieved baseline separation (Rs > 1.5) within 30 min. Pulsed amperometric detection was used to identify saponins with high sensitivity. The limits of detection and quantification of saponins were 0.11-0.31 and 0.33-0.95 ng, respectively. The correlation coefficients ranged 0.9986-1.0000. Intra- and inter-day precisions were <4.2% of retention times and <9.5% of the calculated contents. Average recoveries ranged from 92.18 to 105.98%. Saponin contents in Dioscorea nipponica tubers and commercial yam foods were determined without sample purification or concentration. Among the ten commercial yam foods investigated, only three showed significant saponin contents.

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Changes in Food and Nutrient Intakes of College Students between 1999 and 2009

Cited by 23 publications

References 5 publications

Trends in energy intake among Korean adults, 1998-2015: Results from the Korea National Health and Nutrition Examination Survey

Trends in energy intake among Korean adults, 1998-2015: Results from the Korea National Health and Nutrition Examination Survey

Intake and blood concentrations of folate and their association with health-related behaviors in Korean college students

Development of an analytical method for yam saponins using HPLC with pulsed amperometric detection at different column temperatures

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