Article
Nutrition & Dietetics
Hye Ran Shin, Hyeon Ju Park, Sun Yung Ly
Summary: Vitamin D deficiency is prevalent among young Korean women. This study aimed to determine the optimal vitamin D intake level for maintaining adequate serum 25-hydroxyvitamin D (25[OH]D) levels in young Korean women throughout different seasons. The study identified seasonal factors influencing 25(OH)D levels, calculated the necessary vitamin D intake for sufficient levels, and analyzed the relationship between 25(OH)D and intact parathyroid hormone (iPTH) levels. The results showed that 25(OH)D levels were higher in summertime compared to wintertime, and an increase in vitamin D intake led to a corresponding increase in 25(OH)D levels. The study suggests that increasing UV irradiation time in summertime and consuming vitamin D supplements and foods throughout the year is beneficial for maintaining sufficient levels of 25(OH)D in young Korean women.
Article
Nutrition & Dietetics
RuTong Wang, Weijing Wang, Ping Hu, Ronghui Zhang, Xue Dong, Dongfeng Zhang
Summary: This study aimed to evaluate the association between dietary vitamin D intake and serum vitamin D concentrations with cognitive performance in older Americans. The results showed a positive association between dietary vitamin D intake, serum total 25-hydroxyvitamin D, and cognitive performance, with no significant gender differences in the associations. Further research is needed to clarify the effects of dietary vitamin D intake and specific serum D concentrations on cognitive performance.
Article
Chemistry, Multidisciplinary
Su-In Yoon, Jae-Yeon Min, Sun Yung Ly, SuJin Song, Jin Ah Cho
Summary: Vitamin D deficiency is highly prevalent in Korea and is associated with an increased risk of chronic diseases such as metabolic syndrome. In this study, it was found that higher serum 25-hydroxyvitamin D levels in men were correlated with increased protein and saturated fatty acid intake, but decreased fat, monounsaturated fatty acid, and polyunsaturated fatty acid intake. There was also a negative correlation between abdominal obesity and hypertriglyceridemia with serum 25-hydroxyvitamin D levels in men. Increasing vitamin D intake and serum levels could help reduce the risk of metabolic syndrome-related factors in Korean adults.
APPLIED SCIENCES-BASEL
(2023)
Article
Nutrition & Dietetics
Sonja Soininen, Aino-Maija Eloranta, Ursula Schwab, Timo A. Lakka
Summary: The purpose of this study was to investigate the intake and sources of vitamin D, as well as the determinants of serum 25-hydroxyvitamin D (S-25(OH)D) in Finnish adolescents. The results showed that most adolescents had vitamin D intake at the recommended level, although a quarter did not meet the recommended intake and almost a third had low levels of S-25(OH)D. The main determinants of S-25(OH)D were vitamin D intake from supplements, consumption of milk products, consumption of meat products, travels to sunny countries, and average daylight time.
EUROPEAN JOURNAL OF NUTRITION
(2023)
Review
Nutrition & Dietetics
Eleanor Dunlop, Mairead E. Kiely, Anthony P. James, Tanya Singh, Ngoc Minh Pham, Lucinda J. Black
Summary: The study reviewed the impact of vitamin D food fortification and biofortification on circulating 25-hydroxyvitamin D concentrations, suggesting that vitamin D food fortification can improve 25-hydroxyvitamin D levels in populations.
JOURNAL OF NUTRITION
(2021)
Article
Nutrition & Dietetics
Chun Zhou, Ziliang Ye, Sisi Yang, Xiaoqin Gan, Yanjun Zhang, Mengyi Liu, Panpan He, Yuanyuan Zhang, Qimeng Wu, Jing Nie, Xianhui Qin
Summary: The study found that serum 25(OH)D concentrations, sun exposure time, and dietary vitamin D intake were all inversely associated with the risk of new-onset AKI. However, genetic susceptibility did not significantly modify these associations.
JOURNAL OF NUTRITION
(2023)
Article
Nutrition & Dietetics
Guowei Li, Likang Li, Jonathan D. Adachi, Ruoting Wang, Zebing Ye, Xintong Liu, Lehana Thabane, Gregory Y. H. Lip
Summary: This study found a quasi J-shaped relationship between serum circulating 25-hydroxyvitamin D (25(OH)D) level and risk of recurrent stroke in patients with a stroke history. The lowest risk of recurrent stroke was observed at a 25(OH)D level of approximately 60 nmol/L, which was associated with a 48% reduction in risk compared to a level of 10 nmol/L.
Article
Nutrition & Dietetics
Aislinn F. McCourt, Steven L. Mulrooney, Graham J. O'Neill, E. Dolores O'Riordan, Aifric M. O'Sullivan
Summary: Food fortification of vitamin D improves intake but is not mandatory in many countries. Combining vitamin D with different dietary lipids can affect absorption. This randomized trial investigated the effect of the lipid composition of a vitamin D-fortified dairy drink on 25-hydroxyvitamin D concentrations. The results showed that for individuals classified as vitamin D-insufficient, all forms of vitamin D supplementation increased concentrations significantly. However, for vitamin D-sufficient participants, only the coconut oil dairy drink and supplement had significant increases. There was no effect on metabolic health biomarkers.
BRITISH JOURNAL OF NUTRITION
(2023)
Article
Nutrition & Dietetics
Hanaa Mousa, Nazmul Islam, Vijay Ganji, Susu M. Zughaier
Summary: Low serum 25-hydroxyvitamin D levels are associated with altered lipid profiles, inflammation, and cardiometabolic risks in young healthy adults, particularly in populations with high rates of deficiency and insufficiency. The Monocyte to HDL-cholesterol ratio (MHR) has emerged as a potential novel marker of inflammation that could help predict cardiovascular diseases among this demographic.
Article
Nutrition & Dietetics
Benchao Li, Buyun Liu, Wei Bao, Shuang Rong
Summary: This study aimed to examine the association between serum 25(OH)D concentrations and respiratory infection. The findings showed that individuals with lower serum 25(OH)D concentrations had a higher risk of respiratory infection, particularly head or chest cold, as well as influenza, pneumonia, and ear infections. Lower serum 25(OH)D concentrations were associated with a higher risk of head or chest cold in obese adults. This study highlights the potential protective effect of vitamin D on respiratory health.
JOURNAL OF NUTRITION
(2023)
Article
Medicine, General & Internal
Jeonghoon Ha, Hansang Baek, Chaiho Jeong, Hyunsam Kim, Ki-Hyun Baek, Moo Il Kang, Dong-Jun Lim
Summary: The study showed that individuals with higher 25(OH)D quartiles in a representative Korean population had a significantly lower risk of having higher triglyceride (TG) levels. However, there were no statistically significant differences in other metabolic parameters. More evidence from prospective studies is needed to determine if vitamin D supplementation can improve serum TG levels in healthy adults.
INTERNATIONAL JOURNAL OF GENERAL MEDICINE
(2021)
Article
Nutrition & Dietetics
Eduardo Villamor, Henry Oliveros, Constanza Marin, Sandra Lopez-Arana, Samantha Agudelo-Canas
Summary: This randomized controlled trial examined the effects of providing cholecalciferol-fortified skim milk to Colombian adolescents and adult women. The results demonstrated that the provision of fortified milk increased serum total 25(OH)D concentrations in both groups, with varying effects depending on individual characteristics.
JOURNAL OF NUTRITION
(2023)
Article
Pediatrics
Simei Wang, Quanmei Xu, Anqi Wang, Fang Yuan, Xiaona Luo, Yilin Wang, Miao Guo, Yuanfeng Zhang, Wenjing Zhang, Xiaobing Ji, Yun Ren, Yucai Chen
Summary: This study found a correlation between 25-hydroxyvitamin D deficiency and tic disorders (TD) in Chinese children, but no correlation between 25-hydroxyvitamin D deficiency and the severity of TD. Additionally, the deficiency of 25-hydroxyvitamin D was most pronounced in children over the age of 9.
FRONTIERS IN PEDIATRICS
(2022)
Article
Endocrinology & Metabolism
Zhuohui Chen, Menghui Liu, Xingfeng Xu, Lixiang He, Peng Wang, Xiaojie Cai, Rihua Huang, Shaozhao Zhang, Xinghao Xu, Yuhui Lai, Yiquan Huang, Miaohong Li, Yifen Lin, Peihan Xie, Xinxue Liao, Xiaodong Zhuang, Yue Guo
Summary: This study investigated the joint association of serum 25-hydroxyvitamin D [25(OH)D] and klotho with mortality risk in American community-dwelling adults. The results showed that vitamin D-associated mortality risk is observed only with concurrently decreasing klotho, indicating that vitamin D metabolism dysfunction increases the risk of mortality.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2023)
Article
Multidisciplinary Sciences
Hsin-Ya Tang, Wang-Sheng Ko, Yuan-Horng Yan, Su-Chen Yu, Ya-ling Chiou
Summary: Shift nurses in Taiwan often experience 25(OH)D deficiency, sleep disturbances, depression, and fatigue. However, no significant correlation was found between 25(OH)D levels and mental health.
SCIENTIFIC REPORTS
(2022)
Article
Immunology
Young-Eun Ko, Sei-Ryang Oh, Hyuk-Hwan Song, Hyung Won Ryu, Sun-Yung Ly, Jae Wha Kim
INTERNATIONAL IMMUNOPHARMACOLOGY
(2015)
Article
Biochemistry & Molecular Biology
Young E. Ko, Sun Y. Yoon, Sun Y. Ly, Joo H. Kim, Ki Y. Sohn, Jae W. Kim
JOURNAL OF CELLULAR BIOCHEMISTRY
(2018)
Article
Materials Science, Textiles
Ki Yeon Nam, Young Eun Go, Sun Young Lee, Jung Soon Lee
FIBERS AND POLYMERS
(2013)
Article
Food Science & Technology
Jung-Ran Noh, Yong-Hoon Kim, Gil-Tae Gang, Jung Hwan Hwang, Hyun-Sun Lee, Sun-Yung Ly, Won-Keun Oh, Kyung-Sik Song, Chul-Ho Lee
FOOD AND CHEMICAL TOXICOLOGY
(2011)
Article
Chemistry, Applied
Jung-Ran Noh, Yong-Hoon Kim, Jung Hwan Hwang, Gil-Tae Gang, Seung-Hoon Yeo, Kyoung-Shim Kim, Won-Keun Oh, Sun-Yung Ly, In-Kyu Lee, Chul-Ho Lee
Article
Chemistry, Medicinal
Jong Soon Kang, Won Kyung Lee, Won Kee Yoon, Nayang Kim, Sang-Ki Park, Hyoung Kook Park, Sun Yung Ly, Sang-Bae Han, Jieun Yun, Chang Woo Lee, Kiho Lee, Ki Hoon Lee, Song-Kyu Park, Hwan Mook Kim
PHYTOTHERAPY RESEARCH
(2011)
Article
Nutrition & Dietetics
Hye Ran Shin, SuJin Song, Jin Ah Cho, Sun Yung Ly
Summary: This study investigated the relationship between AIP and obesity indices, blood glucose, lipid profile, and nutrient intake status in Korean adult men. The study found that AIP was linked to obesity indices, blood glucose, and blood lipid profile in Korean men.
Article
Nutrition & Dietetics
Hye Ran Shin, Hyo Jeong Park, SuJin Song, Sun Yung Ly
Summary: The study found that Vitamin D deficiency is a serious issue in Korean population, with seasonal variations affecting the relationship between Vitamin D intake levels and serum 25(OH)D levels. Insufficient Vitamin D intake during low ultraviolet irradiation seasons may lead to lower levels of serum 25(OH)D.
NUTRITION RESEARCH
(2022)
Article
Nutrition & Dietetics
Hye Ran Shin, Hyeon Ju Park, Sun Yung Ly
Summary: Vitamin D deficiency is prevalent among young Korean women. This study aimed to determine the optimal vitamin D intake level for maintaining adequate serum 25-hydroxyvitamin D (25[OH]D) levels in young Korean women throughout different seasons. The study identified seasonal factors influencing 25(OH)D levels, calculated the necessary vitamin D intake for sufficient levels, and analyzed the relationship between 25(OH)D and intact parathyroid hormone (iPTH) levels. The results showed that 25(OH)D levels were higher in summertime compared to wintertime, and an increase in vitamin D intake led to a corresponding increase in 25(OH)D levels. The study suggests that increasing UV irradiation time in summertime and consuming vitamin D supplements and foods throughout the year is beneficial for maintaining sufficient levels of 25(OH)D in young Korean women.
Article
Chemistry, Multidisciplinary
Su-In Yoon, Jae-Yeon Min, Sun Yung Ly, SuJin Song, Jin Ah Cho
Summary: Vitamin D deficiency is highly prevalent in Korea and is associated with an increased risk of chronic diseases such as metabolic syndrome. In this study, it was found that higher serum 25-hydroxyvitamin D levels in men were correlated with increased protein and saturated fatty acid intake, but decreased fat, monounsaturated fatty acid, and polyunsaturated fatty acid intake. There was also a negative correlation between abdominal obesity and hypertriglyceridemia with serum 25-hydroxyvitamin D levels in men. Increasing vitamin D intake and serum levels could help reduce the risk of metabolic syndrome-related factors in Korean adults.
APPLIED SCIENCES-BASEL
(2023)
Article
Nutrition & Dietetics
Han Sol Lee, Eun Young Bae, Sun Yung Ly
Summary: This study investigated the protective effects of Lycium barbarum leaves with and without chlorophyll on atopic dermatitis (AD) and explored the differences in physiological activity. The results showed that both Lycium barbarum leaves and leaves without chlorophyll can alleviate AD and reduce inflammation by decreasing the levels of immunoglobulin E and cytokines. However, further research is needed to determine the ultimate effect on skin improvement.
NUTRITION RESEARCH AND PRACTICE
(2023)
Article
Nutrition & Dietetics
Hyejin You, Hye Ran Shin, SuJin Song, Sun Yung Ly
Summary: The prevalence of vitamin D deficiency in Koreans is high. The study found that there is a relationship between vitamin D intake and bone mineral density in women aged 50 years and above, and further research is needed to confirm these findings.
NUTRITION RESEARCH AND PRACTICE
(2022)
Article
Nutrition & Dietetics
Kyoung-Ok Yoo, Mi-Ja Kim, Sun Yung Ly
NUTRITION RESEARCH AND PRACTICE
(2019)
Article
Nutrition & Dietetics
Seong Hee Kim, Jae Ho Lee, Sun Yung Ly
ASIA PACIFIC JOURNAL OF CLINICAL NUTRITION
(2016)
