title: Estimated Dietary Polyphenol Intake and Major Food and Beverage Sources among Elderly Japanese.
abstract: Estimating polyphenol intake contributes to the understanding of polyphenols' health benefits. However, information about human polyphenol intake is scarce, especially in the elderly. This study aimed to estimate the dietary intake and major sources of polyphenols and to determine whether there is any relationship between polyphenol intake and micronutrient intake in healthy elderly Japanese. First, 610 subjects (569 men, 41 women; aged 67.3 ± 6.1 years) completed food frequency questionnaires. We then calculated their total polyphenol intake using our polyphenol content database. Their average total polyphenol intake was 1492 ± 665 mg/day, the greatest part of which was provided by beverages (79.1%). The daily polyphenol intake differed largely among individuals (183-4854 mg/day), also attributable mostly to beverage consumption. Coffee (43.2%) and green tea (26.6%) were the major sources of total polyphenol; the top 20 food items accounted for >90%. The polyphenol intake did not strongly correlate with the intake of any micronutrient, suggesting that polyphenols may exert health benefits independently of nutritional intake. The polyphenol intake in this elderly population was slightly higher than previous data in Japanese adults, and beverages such as coffee and green tea contributed highly to the intake.
authors.affiliation: Endowed Research Department "Food for Health", Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. taguchi.chie@ocha.ac.jp.
authors.forename: Chie
authors.initials: C
authors.lastname: Taguchi
authors.affiliation: Nestlé Japan Ltd., NYK Tennoz Blidg., 2-2-20 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002, Japan. yoichi.fukushima@jp.nestle.com.
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Fukushima
authors.affiliation: Endowed Research Department "Food for Health", Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. kishimoto.yoshimi@ocha.ac.jp.
authors.forename: Yoshimi
authors.initials: Y
authors.lastname: Kishimoto
authors.affiliation: Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. g1370512@edu.cc.ocha.ac.jp.
authors.forename: Norie
authors.initials: N
authors.lastname: Suzuki-Sugihara
authors.affiliation: Endowed Research Department "Food for Health", Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. saita.emi@ocha.ac.jp.
authors.forename: Emi
authors.initials: E
authors.lastname: Saita
authors.affiliation: TES Holdings Co., Ltd., 6F Tokyo University Entrepreneurs Plaza, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. y.takahashi@tes-h.co.jp.
authors.forename: Yoshinari
authors.initials: Y
authors.lastname: Takahashi
authors.affiliation: Endowed Research Department "Food for Health", Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. kondo.kazuo@ocha.ac.jp.|Institute of Life Innovation Studies, Toyo University, 1-1-1 Izumino, Itakura-machi, Ora-gun, Gunma 374-0193, Japan. kondo.kazuo@ocha.ac.jp.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Kondo
mesh_terms: D000368:Aged; D044466:Asian People; D001628:Beverages / Q000032:analysis*; D003069:Coffee / Q000737:chemistry; D004032:Diet; D005260:Female; D005504:Food Analysis; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D059808:Polyphenols / Q000008:administration & dosage* / Q000032:analysis*; D011795:Surveys and Questionnaires; D013662:Tea / Q000737:chemistry
chemical_list: D003069:Coffee; D059808:Polyphenols; D013662:Tea
keywords: beverage; coffee; consumption; elderly; food; green tea; polyphenol