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Updated: Aug 23, 2026
Assessment of the Metabolic Effects of Isocaloric 2:1 Intermittent Fasting in Mice
Published on: November 27, 2019
Day/night food consumption in mice is strain and age-dependent
Małgorzata Kowal1, Dorota Buda-Lewandowska, Barbara Płytycz
1Department of Genetics and Evolution, Institute of Zoology, Jagiellonian University, R. Ingardena 6, 30-060 Kraków, Poland. kowal@zuk.iz.uj.edu.pl
Abstract:
Food consumption was measured during the day (lights on) and the night (lights off) and compared between one outbred and 9 inbred strains of mice (CBA/Kw, C3H, DBA2, KP, BALB/c, C57BL, B10.Amst, B10.BR, B10.BR Y-del) in age groups 30-60, 60-90, 90-120, and more than 120 days. Outbred mice and animals from B10 sublines ate significantly more during nocturnal darkness. Day and night food consumption was similar in KP animals. In mice from the remaining strains there was an apparent age-related shift from nocturnal towards diurnal eating habits.
