Association between Breakfast Meal Categories and Timing of Physical Activity of Japanese Workers

Farnaz Roshanmehr, Katsuki Hayashi, Yu Tahara, Takahiko Suiko, Yuki Nagamori, Takao Iwai, Shigenobu Shibata*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Background: Breakfast is the most important meal of the day and has been associated with longevity. Regular breakfast consumers often have a healthy lifestyle, including a healthy diet and regular physical activity. Methods: We examined the association between breakfast type, chronotype (morningness-eveningness), and physical activity in 3395 Japanese workers using a cross-sectional web survey. Results: Participants who ate Japanese breakfasts showed an early chronotype, while those who ate breakfast cereal exhibited a later chronotype. Physical activity was positively associated with adopting a Japanese breakfast style. Japanese breakfast eaters performed physical activities from 6:00–9:00 compared with other breakfast eaters. Conclusion: Our findings suggest that eating a Japanese breakfast is associated with an earlier chronotype (morningness) and higher physical activity.

Original languageEnglish
Article number2609
Issue number17
Publication statusPublished - 2022 Sep


  • breakfast
  • chrono-nutrition
  • circadian clock
  • exercise
  • sleep

ASJC Scopus subject areas

  • Food Science
  • Microbiology
  • Health(social science)
  • Health Professions (miscellaneous)
  • Plant Science


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