Papers - TADA Yuki
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Variation in Child Stunting and Association with Maternal and Child Dietary Intakes in Rural Kenya: A One-Year Prospective Study Reviewed International coauthorship International journal
3. Kishino M, Hida A, Ishikawa-Takata K, Tada Y, Kariuki L, Maundu P, Matsuda H, Irie K, Morimoto Y
Dietetics 4 ( 46 ) 2025.10
Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI
Objectives: Few studies have examined maternal dietary intakes in relation to children’s malnutrition status. We examined variations in children stunting status and their association with maternal and child dietary intakes. Methods: This one-year prospective study (conducted from November 2021 to December 2022) consisted of up to four surveys carried out in rural Kenya. It included 135 pairs of children aged 12–59 months and their non-pregnant mothers, all of whom had received nutrition guidance during the study. Dietary intakes were assessed in four non-consecutive 24 h dietary recalls during the first two surveys. Anthropometric measurements were taken at most four times, and variations in children stunting status (not-stunted, recovered-from-stunting, or persistent/worsened stunting) were assessed. Maternal and child dietary intakes, based on variations in stunting status, were compared using one-way analysis of covariance adjusted for socio-demographic variables. Results: Of the 135 children studied, 40 (29.6%) were stunted at baseline, whereas 85, 20, and 30 had no stunting, recovered from stunting, or had persistent/worsened stunting. Children with persistent/worsened stunting had a significantly lower energy intake than other children; however, maternal energy intake did not differ by children’s stunting status. Milk intake was significantly lower among children with persistent/worsening stunting than other children. A similar difference based on variations in stunting was also observed for maternal milk intake. Conclusions for Practice: The mothers of rural Kenyan children who had recovered from stunting consumed the most milk, while the mothers of children with persistent/worsening consumed the least milk. Further research is needed to confirm the factors behind the observed intake differences.
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Association Between Adiposity Rebound and the Frequency of Balanced Meals Among Japanese Preschool Children: A Cross-Sectional Study Reviewed International journal
Yuki Tada, Kemal Sasaki, Tomomi Kobayashi, Yasuyo Wada, Daisuke Fujita and Tetsuji Yokoyama
Nutrients 17 ( 19 ) 3183 2025.10
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI
Background: The Healthy Japan 21-Phase III dietary recommendations comprise a staple food, main dish, and side dish to maintain nutritional balance and support healthy child growth. The relationship between the frequency of such balanced meals and early adiposity rebound (AR), a predictor of obesity, remains unclear. Objective: This study aimed to examine the association between the frequency of balanced meals (staple food, main dish, and side dish) and early AR in preschool children. Methods: In this cross-sectional secondary analysis of nationwide online survey data of 688 mothers of children aged 3–6 years, dietary habits were assessed using a validated NutriSTEP-based 22-item Japanese Nutrition Screening Questionnaire. AR constituted a body mass index (BMI) increase from the 18- to 36-month health checkups recorded in the Maternal and Child Health Handbook. Risk scores reflecting lower frequency of balanced meals were calculated for staple foods, main dishes, and side dishes. Logistic regression evaluated associations between dietary risk scores and AR, adjusting for the child’s sex, age, gestational age, birth weight, daycare attendance, and parental obesity. Results: Among 688 children, 193 (28.1%) exhibited early AR and had significantly higher BMI at age 3 and the most recent measurement (both p < 0.01). A higher total dietary risk score was independently associated with AR (adjusted odds ratio; 2.58 [95% CI: 1.08–6.16]). In addition, the absolute risk difference between high- and low-risk groups was 8.5% (95% CI: 1.7–15.2%). Conclusions: A lower frequency of balanced meals is associated with early AR. These findings suggest that a simple, meal-balance screening tool could potentially aid in the early identification of the risk of later obesity and timely nutritional guidance.
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13C-Glucoseの酸化量による運動中の糖代謝の評価の試み Reviewed
髙田和子，小田栞，多田由紀，日田安寿美，瓜田純久
安定同位体と生体ガス医学応用 16 ( 1 ) 41 - 49 2024.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：日本安定同位体・生体ガス医学応用学会
13Cの標識部位の異なるglucoseを使用して，運動時の糖代謝をglucoseの酸化量として評価しうるかを検討した。glucoseの酸化量や総エネルギー消費量へ寄与率は評価できる可能性が認められた。
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Association between diet quality during pregnancy of mothers and that of 3-year-old offspring: a prospective hospital-based birth cohort study Reviewed International journal
Tada Y, Ishitsuka K, Piedvache A, Tanaka H, Ogawa K, Kobayashi M, Horikawa R, Fujiwara T and Morisaki N
Journal of Nutritional Science 13 ( e26 ) 2024.08
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Cambridge University Press
Children’s eating habits are established early in life and parents play a major role therein. Pregnancy is a teachable moment for the promotion of healthy eating because many women are concerned about their babies’ health and have frequent contact with healthcare providers. We investigated the association between diet quality during pregnancy and the offspring. A total of 691 sets of data on pregnant mothers and their 3-year-old offspring were obtained from the Seiiku Boshi cohort study. The total offspring diet quality score showed a linear trend with the maternal diet quality score. A high diet quality score during pregnancy was positively associated with that of offspring, suggesting the importance of nutritional education in pregnant women to improve their diet quality.
DOI： https://doi.org/10.1017/jns.2024.24
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Comparison between gait characteristics in a free-living situation and in-laboratory walking among Japanese university students Reviewed
Sato Hina, Ishikawa-Takata Kazuko, Tada Yuki, Hida Azumi
Research in Exercise Epidemiology 26 ( 1 ) 24 - 34 2024
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Association of Exercise Epidemiology
<b>Objective</b>: To evaluate free-living gait characteristics in comparison with in-laboratory walking among Japanese university students.
<br><b>Methods</b>: Gait characteristics (walking speed, step length, and cadence) were measured in a laboratory setting and a free-living situation. In both settings, the gait characteristics were assessed using motion sensors attached to both ankles. In the laboratory setting, subjects walked on a circular course for 5 minutes while maintaining their natural walking speed, which was assessed in 5-m walking tests. In a free-living situation, subjects were asked to wear the devices for 1 week. Frequencies of values higher than, the same as, and lower than the data measured in the laboratory were calculated for the free-living data. The effect of footwear type was also examined in a free-living situation.
<br><b>Results</b>: Eight healthy university students (age: 22.1 ± 0.4 years, six female subjects) completed the study. During the free-living period, the frequencies of slower walking speed, shorter step length, and slower cadence compared with the in-laboratory period were 79.4 ± 14.6%, 69.8 ± 25.3%, and 73.4 ± 15.6%, respectively. Walking speed, step length, and cadence were significantly lower when subjects wore slippers compared with other footwears.
<br><b>Conclusion</b>: Healthy Japanese university students’ walking speed, step length, and cadence during free-living were lower compared with the in-laboratory setting. This suggests that the evaluation of walking in an in-laboratory setting may not reflect free-living walking among university students.DOI： 10.24804/ree.2309
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Tada Yuki, Ueda Yukari, Sasaki Kemal, Sugiura Shiro, Suzuki Mieko, Akiyama Yuka, Haraikawa Mayu, Funayama Hiromi, Eto Kumi
Journal of Japanese Society of Shokuiku 17 ( 4 ) 179 - 190 2023.10
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Shokuiku
<p>This study aimed to determine whether participation in meal preparation or increased the opportunities to participate in meal preparation during the pandemic were related to dietary balance, including chronological relationships. An online cross-sectional survey was conducted in February 2021 among individuals registered with a company that provides meals to children aged 2−6 years. The survey gathered data on children’s eating behavior and lifestyle, and the current situation and changes following the COVID-19 outbreak. The 1878 participants were categorized into two groups: those with and without opportunities to be involved in meal preparation for the post-COVID-19 current analysis (n＝1056 and 822, respectively) and those with an increase (n＝478) and those with no change (n＝1400) for the analysis of change compared to the pre-COVID-19 analysis. Multiple regression analyses were performed with the healthy diet score (HDS) as the dependent variable. Even after adjustments for lifestyle habits and household circumstances, opportunities to be involved in meal preparation were positively correlated with the secondary indicators included in HDS. Furthermore, the changed HDS was higher in the group whose opportunities to be involved in meal preparation increased during the pandemic. Therefore, adopting opportunities to be involved in meal preparation may lead to a more balanced diet.</p>
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Tada Yuki, Yoshizaki Takahiro, Yokoyama Yuri, Takebayashi Jun, Okada Emiko, Takimoto Hidemi, Ishimi Yoshiko
The Japanese Journal of Nutrition and Dietetics 81 ( 5 ) 246 - 259 2023.10
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Nutrition and Dietetics
<p><b>Objective:</b> To assess the feasibility of the draft Japanese Nutrient Profile (NP) model, we developed informational materials about its utilization, and conducted Internet research to identify issues and needs according to the motivation of behavioral change.</p><p><b>Methods:</b> We developed the informational materials (4 pages, 1 A3-sided sheet) based on the NP model, as well as materials from other countries. An online cross-sectional survey was conducted among 3,000 Japanese consumers aged 18 years or older. The age, sex, and regional distribution of the participants, as well as their motivation for behavioral change, were similar to those of the National census and the National Health and Nutrition survey, respectively. The participants read the informational materials and were asked how such materials would affect their food purchasing behavior. Based on the participants' current motivation for behavioral change, they were divided into three groups: not interested (<i>n</i> = 1,187), intend to improve (<i>n</i> = 1,465), and recognition of no problem with own eating behavior (<i>n</i> = 348).</p><p><b>Results:</b> More than 90% of the respondents found the informational materials easy to understand. The number of respondents who answered that the symbols that warned against overconsumption would influence their food purchasing behavior was greater for all food groups among the group with the intention to improve, accounting for approximately 70%, in contrast to only about 40% among those who were not motivated.</p><p><b>Conclusions:</b> Our results indicated that the food labeling based on the NP model might influence consumers' healthy eating behaviors, especially among those who intend to improve their eating behaviors.</p>
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Association of breakfast skipping with habitual dietary intake and BMI in female rotating shift workers Reviewed International journal
Takahiro Yoshizaki, Taiki Komatsu, Yuki Tada and Fumiharu Togo
Public Health Nutrition 1 - 10 2023.04
Language：English Publishing type：Research paper (scientific journal)
Breakfast skipping on workdays may contribute to a difference in dietary intake and BMI between RS workers and DS workers and may increase BMI in RS workers, independent of dietary intake.
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A Basic Study for the Development of a Japanese Nutrient Profile Model to Support the Practice of Healthy Eating Behavior Invited Reviewed
Tada Yuki, Yoshizaki Takahiro, Yokoyama Yuri, Takebayashi Jun, Okada Emiko, Takimoto Hidemi, Ishimi Yoshiko
Nippon Eiyo Shokuryo Gakkaishi 76 ( 1 ) 27 - 32 2023
Authorship：Lead author Language：Japanese Publishing type：Research paper (conference, symposium, etc.) Publisher：Japan Society of Nutrition and Food Science
<p>A nutrient profile model (NP model) ranks foods according to their nutritional composition, allowing individuals to make well-informed dietary choices. In other countries, the application of NP models is reportedly associated with healthier food choices and health indicators. We examined a NP model applicable to the Japanese population for processed foods and preparing dishes. Considering the nutrition status of the Japanese population, we proposed that the model should target those aged 18 years or older. A category-specific model was adopted with setting thresholds to avoid overconsumption of total fat, saturated fat, sodium or salt equivalent, and energy for processed foods and prepared foods. We set the nutrient criteria for the proposed model and determined thresholds for each food category. In order to set the salt threshold for each dish, we conducted secondary analyses of the 2014‐2018 National Health and Nutrition Survey. The food groups according to dish type were compared between “high salt” consumers and “adequate” consumers. Furthermore, we conducted an online cross-sectional feasibility survey among 3,000 consumers. Here we describe the development procedure and feasibility of the proposed Japanese NP model to support the practice of healthy eating behavior.</p>
DOI： 10.4327/jsnfs.76.27
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Mealtime Regularity Is Associated with Dietary Balance among Preschool Children in Japan—A Study of Lifestyle Changes during the COVID-19 Pandemic Reviewed
Yuki Tada, Yukari Ueda, Kemal Sasaki, Shiro Sugiura, Mieko Suzuki, Hiromi Funayama, Yuka Akiyama, Mayu Haraikawa and Kumi Eto
Nutrients 14 ( 14 ) 2979 2022.07
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
DOI： 10.3390/nu14142979
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日本版栄養プロファイルモデル試案の作成プロセスと妥当性評価に関する基礎的研究 Reviewed
石見 佳子, 竹林 純, 横山 友里, 吉﨑 貴大, 多田 由紀, 岡田 恵美子, 瀧本 秀美
栄養学雑誌 80 ( 2 ) 79 - 95 2022.04
Language：Japanese Publishing type：Research paper (scientific journal)
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Focus Group Interviews on a Nutrient Profile Model to Support Healthy Eating Behaviors: An Investigation Targeting Those Wishing to Improve Their Eating Habits Reviewed
Yuki Tada, Takahiro Yoshizaki, Yuri Yokoyama, Jun Takebayashi, Emiko Okada, Hidemi Takimoto and Yoshiko Ishimi
80 ( 2 ) 126 - 138 2022.04
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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Energy Intake from Healthy Foods Is Associated with Motor Fitness in Addition to Physical Activity: A Cross-Sectional Study of First-Grade Schoolchildren in Japan Reviewed
Hatta N, Tada Y, Ishikawa-Takata K, Furusho T, Kanehara R, Hata T, Hida A, Kawano Y
International Journal of Environmental Research and Public Health 19 ( 3 ) 2022.02
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)
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High adherence to the food pyramid’s recommendations avoids the risk of insufficient nutrient intake among farmers in peri-urban Kenya Reviewed
Kishino M, Hida A, Hara K, Mungai DN, Opiyo RO, Matsuda H, Tada Y, I-Takata K, Irie K and Morimoto Y
Nutrients 13 ( 4470 ) 2021.12
Language：English Publishing type：Research paper (scientific journal)
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A study on the characteristics of nutrient profile models in other countries for the development of a Japanese nutrient profile model
Yuri Yokoyama, Takahiro Yoshizaki, Yuki Tada, Emiko Okada, Jun Takebayashi, Hidemi Takimoto, and Yoshiko Ishimi
79 ( 3 ) 162 - 173 2021.06
Language：Japanese Publishing type：Research paper (scientific journal)
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Nutrient Profiles of Dishes Eaten by High Salt Consumers and Adequate Salt Consumers in the 2013–2018 National Health and Nutrition Survey, Japan Reviewed
Hidemi Takimoto, Emiko Okada, Jun Takebayashi, Yuki Tada, Takahiro Yoshizaki, Yuri Yokoyama, Yoshiko Ishimi
Nutrients 5(Suppl 2) 457 2021.06
Language：English Publishing type：Research paper (scientific journal)
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Breakfast before resistance exercise lessens urinary markers of muscle protein breakdown in young men: a crossover trial Reviewed
Yasuda J, Gomi T, Kotemori A, Yokoyama Y, Yoshizaki T, Hida A, Tada Y, Katsumata Y, Kawano Y
Nutrition 83 111088 2021.03
Language：English Publishing type：Research paper (scientific journal)
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女子高校生における便秘発現状況と生活習慣要因との関連
秦俊貴, 杉本真悠, 渡辺愛梨沙, 三浦里佳子, 柳瀬彰良, 多田由紀, 日田安寿美, 佐藤恭子, 川野因
日本食育学会誌 14 ( 2 ) 89 - 99 2020.04
Language：Japanese Publishing type：Research paper (scientific journal)
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スーパー食育スクール指定小学校の5・6年生における朝食での「主食・汁物・おかず」摂取頻度と生活習慣、食意識・食態度および食物摂取状況に関する研究 Reviewed
江口 敏幸, 羽生 理恵, 横山 茉由子, 平沼 映理子, 多田 由紀, 日田 安寿美, 古泉 佳代, 吉村 幸雄, 山岸 一良, 加納 直樹, 川野 因
日本食育学会誌 13 ( 4 ) 269 - 281 2019.10
Language：Japanese Publishing type：Research paper (scientific journal)
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Examining the Relationship between Common Cold-related Absences from School and a Healthy Lifestyle among School-aged Children as Assessed by a Comprehensive Index of Diet, Exercise, and Sleep Reviewed
Naoko Hatta, Yuki Tada, Aoi Kobayashi, Ikuko Hayashi, Shoya Mori, Tadasu Furusho, Masahiko Sakamoto, Izuru Niimura, Masashi Hashimoto, Azumi Hida and Yukari Kawano
13 ( 2 ) 133 - 142 2019.04
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)