Meal timing improved muscle strength in middle-aged mice
In an animal experiment, limiting feeding to a daily window during the mice’s inactive phase also helped maintain basal blood sugar levels.
Limit: The abstract does not report the feeding window length or experiment duration
Edited by Boris Djordjevic · AgingResearch.News
Middle-aged mice showed improved muscle strength in an animal experiment that limited feeding to a defined daily window during their inactive phase. The researchers examined whether changing feeding schedules could help maintain physical performance in early aging.
The feeding schedule also maintained basal blood sugar levels and reduced the buildup of fat droplets in muscle. These benefits were associated with changes in networks of mitochondria, the structures that supply energy within cells. The changes differed by muscle type. Changes in interactions between mitochondria and an internal membrane network in muscle cells also differed by muscle type.
Why it matters
Age-related loss of muscle mass and function can threaten independence. This work addresses whether changing meal timing during middle age might help preserve physical performance as aging begins.
Caveats
The experiment was in mice, not people. The abstract does not report the feeding window’s length or how long the experiment lasted.
- Time-restricted feeding
- Lipid and ceramide metabolism
- Mitochondrial fission and fusion
- Muscle strength
- Basal glycemia
- Mice
Time-restricted feeding is part of Bryan Johnson's Blueprint
The paper
Pontificia Universidad Católica de Chile
Scientific Reports, Jul 17, 2026, Open access
