Korean Journal of Community Nutrition

Original Articles

[English]
Effects of Low-carbohydrate and High-fat Diet Supplemented with Ketogenic Drink on Cognitive Function and Physical Performance in the Elderly at High Risk for Dementia: Eun Ji Kim, Jung Sik Park, Won Sun Choi, Yoo Kyoung Park; Korean J Community Nutr 2019;24(6):525-534. Published online December 31, 2019; DOI: https://doi.org/10.5720/kjcn.2019.24.6.525

OBJECTIVES
Reduced glucose utilization in the main parts of the brain involved in memory is a major cause of Alzheimer's disease, in which ketone bodies are used as the only and effective alternative energy source of glucose. This study examined the effects of a low-carbohydrate and high-fat (LCHF) diet supplemented with a ketogenic nutrition drink on cognitive function and physical activity in the elderly at high risk for dementia.
METHODS
The participants of this study were 28 healthy elderly aged 60-91 years showing a high risk factor of dementia or whose Korean Mini-Mental State Examination (K-MMSE) score was less than 24 points. Over 3 weeks, the case group was given an LCHF diet with nutrition drinks consisting of a ketone/non-ketone ratio of 1.73:1, whereas the control group consumed well-balanced nutrition drinks while maintaining a normal diet. After 3 weeks, K-MMSE, body composition, urine ketone bodies, and physical ability were all evaluated.
RESULTS
Urine ketone bodies of all case group subjects were positive, and K-MMSE score was significantly elevated in the case group only (p=0.021). Weight and BMI were elevated in the control group only (p<0.05). Grip strength was elevated in all subjects (p<0.01), and measurements of gait speed and one leg balance were improved only in the case group (p<0.05).
CONCLUSIONS
We suggest that adherence to the LCHF diet supplemented with a ketogenic drink could possibly influence cognitive and physical function in the elderly with a high risk factor for dementia. Further, we confirmed the applicability of this dietary intervention in the elderly based on its lack of any side effects or changes in nutritional status.

Citations

Citations to this article as recorded by

To Keto or Not to Keto? A Systematic Review of Randomized Controlled Trials Assessing the Effects of Ketogenic Therapy on Alzheimer Disease
Maria G Grammatikopoulou, Dimitrios G Goulis, Konstantinos Gkiouras, Xenophon Theodoridis, Kalliopi K Gkouskou, Athanasios Evangeliou, Efthimis Dardiotis, Dimitrios P Bogdanos
Advances in Nutrition.2020; 11(6): 1583. CrossRef

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[English]
Effects of Low-Calorie Diet Including High Protein-Low Carbohydrate Protein Bar on Weight Loss and Serum Lipid Indicators in Overweight Women according to Dietary Compliance: Dasom Park, Hyun Joo Lee, Sook Mee Son; Korean J Community Nutr 2019;24(6):485-496. Published online December 31, 2019; DOI: https://doi.org/10.5720/kjcn.2019.24.6.485

Abstract PDF PubReader: OBJECTIVES
This study was conducted to investigate the effect of a 6-week low-calorie diet (LCD) program including high protein-low carbohydrate protein bar on weight loss, blood pressure, and blood lipid profile in 40 overweight women according to dietary compliance.
METHODS
Subjects were 62 healthy overweight women (BMI â‰¥ 23.0 or body fat percentage â‰¥ 28%), aged 20~59 yrs who were provided a high protein-low carbohydrate protein bar (each 35 g, 154 kcal, protein energy %: 28.6%, carbohydrate energy %: 38.7%) as part of dinner for 6 weeks. Forty subjects who completed the whole diet program were categorized into high compliance (HC) group (days of eating protein bar â‰¥ 5 weeks) or low compliance (LC) group (days < 5 weeks).
RESULTS
Energy intake significantly decreased from 1,867.5 kcal at baseline to 1,137.4 kcal at 6 weeks for the HC group and from 1,971.7 kcal to 1,362.2 kcal for the LC group, respectively. On the other hand, a significant increase in protein energy percentage was observed in each group (HC group: 3.5%, LC group: 2.2%). Both groups showed significant decreases in weight (HC group: 1.8 kg, LC group: 1.1 kg), BMI, fat mass, systolic blood pressure, total cholesterol, and LDL-cholesterol. Reduction of body fat percentage and diastolic blood pressure were only observed in the HC group.
CONCLUSIONS
The inclusion of a high protein-low carbohydrate protein bar as part of a low-calorie diet for a short period can be effective to achieve weight loss and concomitantly improve blood cholesterol level without serious physiological side effects. More evident results can be achieved by eating a diet with low calorie diet including high protein-low carbohydrate protein bar for more than 5 weeks.

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[English]
Distribution and Exposure Prevalence of Carbohydrate-based Food Intake among Obese Korean Adults Based on the Health Examinees (HEXA) Study: Yuri Han, Sung Ok Kwon, Sang Ah Lee; Korean J Community Nutr 2017;22(2):159-170. Published online April 30, 2017; DOI: https://doi.org/10.5720/kjcn.2017.22.2.159

Abstract PDF PubReader

OBJECTIVES
The purpose of this study was to estimate the distribution and exposure prevalence of total carbohydrate intake and the carbohydrate-based foods such as rice, noodles, sweet potatoes, sweet drinks, milk and fruits and to characterize intake patterns among obese Korean adults.
METHODS
Subjects included 137,363 adults aged 40 years or older who participated in a Health Examinees (HEXA) Study. Multiple regression analysis of data from Semi-Quantitative Food Frequency Questionnaire (SQFFQ) identified food sources of carbohydrates. Weight, height and waist circumstance (WC) were measured, and the body mass index (BMI) was calculated. Obesity was defined as BMI â‰¥ 25 kg/m2 and abdominal obesity as WC â‰¥ 90 cm and â‰¥ 85 cm for males and females, respectively.
RESULTS
Obese adults appeared to have a higher total carbohydrate intake in the univariate analysis but had eaten less after adjustment for general and lifestyle factors, compared to normal weight adults (OR 0.78, 95% CI 0.73-0.82 for general obesity; OR 0.79, 95% CI 0.74-0.85, for abdominal obesity; P trend < 0.0001, respectively). Based on advance analysis for the food sources of carbohydrates, obese subjects had lower intake of rice (OR 0.86, 95% CI 0.68 -1.09 for general obesity; OR 0.87, 95% CI 0.67-1.13, for abdominal obesity; P trend < 0.0001, respectively) and higher intake of noodles (OR 1.21, 95% CI 1.16-1.27 for general obesity; OR 1.25, 95% CI 1.19-1.32, for abdominal obesity; P trend < 0.0001 respectively). With regard to other food sources of carbohydrates such as milk and fruits, intake was lower among obese compared to normal weight subjects.
CONCLUSIONS
In the Korean middle-aged and older obesity groups, the intake of carbohydrates and the related foods was lower than in normal weight subjects, except for noodles. We conclude that a higher intake of noodles may enhance weight-gain. Therefore, this study suggested that the guidelines should consider the types of carbohydrate sources and the amount consumed from foods in order to provide proper guidance with regard to control and prevent obesity among Korean adults.

Citations

Citations to this article as recorded by

Calcium- and Sodium-Rich Food Intake among Koreans with and without Metabolic Syndrome: Cross-Sectional Analysis of the Korean Genome and Epidemiology Study
Byeonggeun Choi, Jiyoon Kim, Yeonjin Kim, Jiae Shin, Sang-Ah Lee
Nutrients.2024; 16(15): 2439. CrossRef
In vitro safety and efficacy of probiotics mixture on carbohydrate digestion inhibition
Eunsol Seo, Jang-Bin Woo, MinYeong Seo, Jeongmin Woo
Korean Journal of Food Preservation.2023; 30(3): 538. CrossRef
Assessment of dietary quality and nutrient intake of obese children in Changwon area
Ji-Sook Park, Ha-Neul Choi, Jae-Young Kim, Sang-Hyuk Ma, Jung-Eun Yim
Journal of Nutrition and Health.2022; 55(6): 630. CrossRef
Comparison of the levels of energy intake from dish and food groups by gender and age among Korean obese adults: data obtained from the 2013-2018 Korea National Health and Nutrition Examination Survey
Cheongmin Sohn, Woori Na, Chaeryeon Kim, Seunghee Choi, Oh Yoen Kim, Jounghee Lee, Mi Ock Yoon, Myoungsook Lee
Journal of Nutrition and Health.2022; 55(6): 670. CrossRef
Relationship between Obesity and Dental Caries in Some University Students: A Pilot Study
SooJeong Hwang, Hoon Kim, MinSeock Seo
Journal of Dental Hygiene Science.2021; 21(2): 127. CrossRef

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[English]
An Evaluation of Chronic Disease Risk Based on the Percentage of Energy from Carbohydrates and the Frequency of Vegetable Intake in the Korean Elderly: Using the 2007-2009 Korea National Health and Nutrition Examination Survey: Yoon Suk Suh, Min Seon Park, Young Jin Chung; Korean J Community Nutr 2015;20(1):41-52. Published online February 28, 2015; DOI: https://doi.org/10.5720/kjcn.2015.20.1.41

Abstract PDF PubReader

OBJECTIVES
Korean elderly people are known to consume diets high in carbohydrates low in vegetables compared to other age groups. This study evaluated the chronic disease risks and nutritional status in this group based on the percentage of energy from carbohydrates and the frequency of vegetable intake.
METHODS
Using the 2007~2009 Korean National Health Nutrition Examination Survey data, except those who were undergoing treatment for chronic disease, final 1,487 subjects aged 65 and older were divided into 4 groups: moderate carbohydrate energy ratio of 55~70% and low frequency of vegetable intake defined as less than 5 times per day (MCLV), moderate carbohydrate ratio and high frequency of vegetable intake more than 5 times (MCHV), high carbohydrate energy ratio above 70% and low frequency of vegetable intake less than 5 times (HCLV), and high carbohydrate ratio and high frequency of vegetable intake more than 5 times (HCHV). All data were analyzed after the application of weighted value, using a general linear model or logistic regression.
RESULTS
More than half of Korean elderly consumed diets with HCLV, and this group showed poor nutritional status and lower frequency of intake of most food items, but with no risk of chronic disease such as diabetes, obesity, hypertension, cardiovascular disease or anemia probably due to low intake of energy. On the contrary, MCHV group with a high percentage of energy from fat and protein showed the highest intake of energy and most nutrients, the highest frequency of intake of most of food items and a tendency of high risk of abdominal obesity, being followed by the MCLV group. Meanwhile, HCHV group showed a tendency of high risk of hypertension, followed by HCLV group with low frequency of intake of vegetables compared with the two moderate carbohydrate groups.
CONCLUSIONS
The results suggested that the percentage of energy from carbohydrate and the frequency of vegetable intake affected the nutritional status, but not significantly affected the risk of chronic disease in Korean elderly. Further studies using more detailed category of % energy from carbohydrates and of type and amount of vegetables with consideration of individual energy intake level, excessive or deficient, are needed to confirm the results.

Citations

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Association of Dietary Quality with Subjective Health-Related Perception and Chronic Diseases According to Age Segmentation of Korean Elderly
Sojeong Lee, Seungmin Lee
Korean Journal of Community Nutrition.2021; 26(5): 363. CrossRef
Energy big data acquisition and application based on service portfolio quality
Pingping Sun, Lingang Gu
Sustainable Energy Technologies and Assessments.2021; 45: 101134. CrossRef
Health and Nutrition Status of Elderly People with Multimorbidity: A Korea National Health and Nutrition Examination Survey (2013~2015)
Na-Gyeong Oh, Jung-Sook Seo
Korean Journal of Community Nutrition.2020; 25(6): 502. CrossRef
Analyzing the Relative Importance for the Development Plan of the Public Health Care System
You Ho Kim
Journal of Health Informatics and Statistics.2018; 43(4): 300. CrossRef
The Quality of a Traditional Dietary Pattern in Relation to Metabolic Syndrome in Elderly South Koreans
Chorong Oh, Jaekyung No
Journal of Obesity & Metabolic Syndrome.2018; 27(4): 254. CrossRef
Development of a Food Exchange Table and Food Pattern for Nutritionally Balanced Menu Planning
Yun Ahn, Ikhyun Yeo, Sangyun Lee, Kisun Nam
Korean Journal of Community Nutrition.2018; 23(5): 411. CrossRef
Estimation of Usual Intake and Assessment of Nutrient Intake for Korean Adolescents: Analysis of the 2010-2012 Korea National Health and Nutrition Examination Survey
Meeyoung Kim, Jihyun Yoon
Family and Environment Research.2017; 55(4): 385. CrossRef

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[English]
The Relationship between beta-cell Function and Nutrient Intakes in Korean Adult: Using 4th Korea National Health and Nutrition Examination Survey 2009: You Mi Lee, Hye Kyung Chung, Heejin Kimm, Sun Ha Jee; Korean J Community Nutr 2012;17(2):243-257. Published online April 30, 2012; DOI: https://doi.org/10.5720/kjcn.2012.17.2.243

Abstract PDF PubReader

The purpose of this study was to evaluate pancreatic beta-cell function of Korean adult and to examine the associations between beta-cell function and nutrient intakes. Data were analyzed for 1,917 male and 2,885 female subjects older than 30 years using 'The Forth Korean National Health and Nutrition Survey in 2009'. We calculated HOMA beta-cell (The homeostasis model assessment of beta-cell function) using fasting glucose and fasting insulin for assessing beta-cell function. Subjects were divided into HHG (High HOMA beta-cell Group) or LHG (Low HOMA beta-cell Group) according to median of HOMA beta-cell, and then nutrient intakes were compared between two groups. In the entire study population, HHG showed lower percent of carbohydrate intakes (p < 0.05), and higher fat (p < 0.01), percent of fat (p < 0.05), vitamin A (p < 0.05), carotene (p < 0.05) and riboflavin (p < 0.05) intakes than LHG. In addition, levels of HOMA beta-cell were negatively correlated with percent of carbohydrate (beta = -0.040, p < 0.05), and positively correlated with percent of fat (beta = 0.046, p < 0.01). The subjects were then divided into two subgroups according to body mass index values, either < 23 kg/m2 (under- and normal-weight) or > or = 23 kg/m2 (over-weight and obese). Significant differences of some nutrients intakes and correlations with HOMA beta-cell were observed only in under- and normal weight subjects, but not in over-weight and obese subjects. In conclusion, high carbohydrate, lower fat and lower vitamin intakes may be related with pancreatic beta-cell dysfunction in under- and normal-weight Korean.

Citations

Citations to this article as recorded by

Beta-Cell Function and Nutrient Intake
You Mi Lee
The Journal of Korean Diabetes.2016; 17(3): 190. CrossRef
Alcohol Use Behaviors, Fat Intake and the Function of Pancreatic β-Cells in Non-Obese, Healthy Korean Males: Findings from 2010 Korea National Health and Nutrition Examination Survey
Hye-Kyung Chung, Yoonsu Cho, Min-Jeong Shin
Annals of Nutrition and Metabolism.2013; 62(2): 129. CrossRef

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