Affiliations: Department of Nutritional Science, Tokyo University of
Agriculture 1-1-1, Sakuragaoka, Setagaya, Tokyo 156-8502, Japan. Tel.: +81 3
5477 2453; Fax: +81 3 5477 7222; E-mail: swatanab@nodai.ac.jp
Note: [] Corresponding author
Abstract: Effects of phytochemicals on human health are suggested from various
animal experiments, but human studies remain insufficient. We have constructed
a database of various phytochemicals (polyphenols, carotenoids, and sulphur
compounds) (http://www.life-science.jp/fff/) and estimated the amount of intake
among Japanese population. The subjects were volunteers (16 males and 63
females, averagely aged 71 and 61, respectively) in Iwate city. Average BMI was
23 in both sexes. Intake of 36 phytochemicals was calculated from one-day dietary
records of all intake, by multiplying concentrations of each phytochemical in
foods. Phytochemicals with average intake of at least 10 μmole per day were
catechin, isoflavones, isothiocyanate, ferulic acid, quercetin, cinnamic acid
and chlorogenic acid. Chief component analysis yielded 12 factors (80%).
