Korean Journal of Community Nutrition

Research Article

[Korean]
Association of ultra-processed food with diabetes and impaired fasting glucose in elderly populations (urban and rural): a cross-sectional study: Seung Jae Lee, Mi Sook Cho; Korean J Community Nutr 2024;29(1):51-64. Published online February 29, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.1.51

Objectives
This study examined the association between ultra-processed food (UPF) consumption and chronic diseases in elderly Koreans.
Methods
Data from the 2019–2021 Korea National Health and Nutrition Examination Survey were analyzed. Dietary intake and UPF consumption were assessed using the NOVA food classification based on 24-hour recall data from 3,790 participants (aged 65+ years). Participants were divided into 4 groups based on the quartile of energy intake from UPFs. Regions were classified as urban or rural. Multivariable logistic regression was employed to estimate the adjusted odds ratios (AORs) with 95% confidence intervals (CIs) after controlling for potential confounders.
Results
Among the participants, 71.3% resided in urban and 28.7% in rural areas. Compared to the urban elderly, rural participants tended to be older, have lower education and income levels, be more likely to live in single-person households, and have a higher smoking rate (P < 0.05). Urban elderly consumed more UPFs daily (146.1 g) compared to rural residents (126.6 g; P < 0.05). “Sugar-sweetened beverages” were the most consumed category in both regions. “Sweetened milk and its products” and “traditional sauces” were prominent in urban areas, while rural elderly consumed more “traditional sauces” and “distilled alcoholic beverages.” Rural areas also had a higher carbohydrate-to-calorie ratio than urban areas. Compared to the lowest quartile of UPF intake, the highest quartile was significantly associated with impaired fasting glucose only in rural areas (AOR, 1.48; 95% CI, 1.00–2.19; P for trend = 0.0014). No significant associations were observed for diabetes in either urban or rural areas.
Conclusions
This study suggests that high intake of UPFs is associated with increased odds of impaired fasting glucose in rural elderly. Further research is needed to elucidate the specific negative health effects of UPFs in different populations, and targeted efforts should promote healthy diets in both urban and rural areas.

Citations

Citations to this article as recorded by

A Study of the Chemosensory Properties of Commercial Processed Foods Using Electronic Sensors
Hyeonjin Park, Younglan Ban, Sojeong Yoon, Hyangyeon Jeong, Seong Jun Hong, Hee Sung Moon, Se Young Yu, Hyun-Wook Kim, Kyeong Soo Kim, Eun Ju Jeong, Eui-Cheol Shin
Journal of the Korean Society of Food Science and Nutrition.2024; 53(8): 805. CrossRef
Analysis of Flavor and Taste Patterns of Various Processed Animal Foods: Using the Electronic Tongue and Nose
Hee Sung Moon, Se Young Yu, Younglan Ban, Hyeonjin Park, Sojeong Yoon, Na Eun Yang, Seong Jun Hong, Hyun-Wook Kim, Kyeong Soo Kim, Eun Ju Jeong, Eui-Cheol Shin
Journal of the Korean Society of Food Science and Nutrition.2024; 53(12): 1267. CrossRef

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Original Article

[English]
Effects of Folic Acid or Ascorbate Supplementation on Plasma Homocysteine Levels and Oxidative Stress in Korean Adults with Impaired Fasting Glucose: Mir Ri Hwang, Min Ho Shin, Jung Ae Rhee, Sun Seog Kweon, Hyeon Sook Lim; Korean J Community Nutr 2008;13(2):263-275. Published online April 30, 2008

Abstract PDF: Impaired fasting glucose (IFG) is one of significant risk factors of developing diabetes. The persons with IFG are, thus, an important target group for primary prevention of diabetes. It is well known that plasma homocysteine concentration may be increased in poor folate nutritional status. Elevated level of plasma homocysteine is considered as a marker of enhanced oxidative stress. In addition, the protective effect against oxidative stress may be diminished in poor antioxidative nutrient status as vitamin C. It is, therefore, important to maintain adequate nutritional status of folate and vitamin C in the patients with type 2 diabetes or IFG. This study was performed to determine the effects of supplementation of folic acid or vitamin C on plasma concentrations of homocysteine, oxidized LDL, and lipids and on the activity of plasma anti-oxidative enzyme in patients with IFG. A total of 97 patients with IFG were participated voluntarily with written consents. They were divided into one of the four experimental groups; Control (C), Folatesupplemented (F), Ascorbate-supplemented (A), and Folate plus ascorbate-supplemented (FA). The subjects in C were taken placebo, those in F were supplemented 1 mg of folate, those in A were received 1,000 mg of vitamin C, and those in FA were given 1 mg of folate plus 1,000 mg of vitamin C daily for 4 weeks. No change in plasma concentrations of vitamin C, lipids, and oxidized LDL and the activity of GSH-Px were observed in vitamin C-supplemented group (A + FA) and folate-supplemented group (F + FA) compared to the placebo group (C + A). Only the folate-supplemented group (F + FA) had significantly increased average serum folate concentration and lowered plasma homocysteine concentration compared to the placebo group (C + A). Thus, it should be recommended the patients with IFG to increase folate intake through diets and, if it is not sufficient, to take folic acid supplements to prevent the development of complications induced by hyperhomocysteinemia as well as oxidative stress.

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