title: Dietary intake is associated with human chronotype as assessed by both morningness-eveningness score and preferred midpoint of sleep in young Japanese women.
abstract: We analyzed the association between dietary intake and chronotype as assessed by both Morningness-Eveningness Questionnaire (MEQ) score and preferred midpoint of sleep in 112 young Japanese women. Dietary intake was assessed by a brief, self-administered diet history questionnaire. A lower MEQ score (evening-type tendency) showed a significant association with a lower energy-adjusted intake of protein, calcium, magnesium, zinc, vitamins (D, riboflavin, and B(6)), and vegetables, and with a higher intake of noodles. Furthermore, a later midpoint of sleep showed a significant association with a lower energy-adjusted intake of protein, cholesterol, potassium, calcium, magnesium, zinc, vitamins (D, riboflavin, B(6), and B(12)), soy, fish and shellfish, and eggs, and with a higher intake of noodles, bread, and confections. These data suggest that evening chronotype is associated with inadequate dietary habits such as low vitamin and mineral intakes.
authors.affiliation: Department of Food and Life Science, Azabu University, Kanagawa, Japan. satomito@azabu-u.ac.jp
authors.forename: Natsuko
authors.initials: N
authors.lastname: Sato-Mito
authors.forename: Shigenobu
authors.initials: S
authors.lastname: Shibata
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sasaki
authors.forename: Kazuto
authors.initials: K
authors.lastname: Sato
mesh_terms: D000293:Adolescent; D001683:Biological Clocks / Q000502:physiology*; D004032:Diet; D004435:Eating; D002149:Energy Intake; D005247:Feeding Behavior / Q000502:physiology*; D005260:Female; D006801:Humans; D007564:Japan; D009749:Nutrition Surveys; D012890:Sleep / Q000502:physiology*; D055815:Young Adult