The Influence of Eating Rhythm on Diet-induced Thermogenesis in Young Women

  • Sekino Yuka
    Kanagawa University of Human Services Graduate Program in Human Services, Nutrition and Dietetics
  • Kashiwa Eriko
    Kanagawa University of Human Services, Faculty of Health and Social Work School of Nutrition and Dietetics
  • Nakamura Teiji
    Kanagawa University of Human Services Graduate Program in Human Services, Nutrition and Dietetics Kanagawa University of Human Services, Faculty of Health and Social Work School of Nutrition and Dietetics

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  • 食事時刻の変化が若年女子の食事誘発性熱産生に及ぼす影響
  • ショクジ ジコク ノ ヘンカ ガ ジャクネン ジョシ ノ ショクジ ユウハツセイ ネツ サンセイ ニ オヨボス エイキョウ

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A nocturnal lifestyle is now common due to changes in the social environment. The aim of this study was to clarify the influence of eating rhythm on diet-induced thermogenesis (DIT). For 33 healthy female volunteers (aged 20.5±1.2 y) who were non-smokers, we established two meal patterns, one (morning) in which the participants ate meals at 07:00, 13:00, and 19:00, and another (night) in which they ate at 13:00, 19:00, and 01:00. The energy of each meal was 500 kcal. DIT was evaluated by measuring the energy consumption after each meal using a cross-over design. DIT at 07:00 was the highest among the three meals for the morning pattern (p<0.05), and DIT at 01:00 was the lowest among the night pattern meals by a significant margin (p<0.01). The total accumulation of DIT was also significantly lower for the night pattern than for the morning pattern (p<0.01). These results indicate that the habit of eating at night without taking breakfast may be one of the reasons for obesity, because the decrease in energy consumption during the day depends on falling DIT.

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