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2021 Fiscal Year Final Research Report

Estimation of meal timing and nutrition intake using food photography and its association with circadian rhythm: an epidemiologic study.

Research Project

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Project/Area Number 18K11008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionNara Medical University (2021)
Tezukayama University (2018-2020)

Principal Investigator

Ishizuka Rika  奈良県立医科大学, 医学部, 研究員 (50461190)

Co-Investigator(Kenkyū-buntansha) 佐伯 圭吾  奈良県立医科大学, 医学部, 教授 (60364056)
高地 リベカ  奈良女子大学, 生活環境科学系, 教授 (60413085)
大滝 直人  武庫川女子大学短期大学部, 食生活学科, 准教授 (70551133)
Project Period (FY) 2018-04-01 – 2022-03-31
Keywords栄養 / 生体リズム
Outline of Final Research Achievements

In the present study, over 500 elderly participants recorded their food intake using a digital camera for 48 hours. Based on the food-photographic record, we estimate the nutrition intake and the longest fasting time. We assess the distribution of the longest fasting time by age group and gender and the association with the prevalence of diabetes and dyslipidemia, urinary melatonin excretion, depressive symptoms, and sleep disturbance.

Free Research Field

疫学

Academic Significance and Societal Importance of the Research Achievements

食事の内容や摂取時刻を客観的に測定するには、多大な労力を要するため、疫学研究が乏しい。本研究はデジタルカメラを用いて推定した絶食時間や栄養摂取を評価し、健康指標との関連を検討した点で新規性が高いと考える。本研究の知見は、適切なタイミングに必要な栄養摂取を促し、メタボリック症候群やフレイルの予防につながるものであり、社会的意義も高いと考える。

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Published: 2023-01-30  

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