Reducing calorie intake and limiting nighttime eating are well established ways to improve health and potentially extend lifespan. Researchers are now asking whether eating only during set hours each day could have a similar impact on overall healthy aging. In a new study, mice that followed a consistent daily eating window showed significant improvements in health span and remained free of disease for longer.
The study found that limiting feeding to the nighttime hours, when healthy mice are normally active, led to a significant improvement in a healthy lifespan. The findings suggest that aligning food intake with circadian rhythms through timed feeding alone can meaningfully affect aging in mammals.
Unlike calorie restriction, which can be difficult to sustain, the mice were allowed to eat freely within either an eight- or 12-hour daily window. Researchers then followed more than 500 mice over their entire lifespans.
Results showed clear benefits. Mice restricted to a daily eating window had slower fat accumulation, lower frailty, delayed disease onset, and better overall health than mice allowed to eat at all times. Among males, an eight-hour feeding period was also linked to about 12% longer lifespan.
Research suggests that the best time for people to eat may be within a 12-hour period starting in the morning. Further clinical trials are needed to assess whether time-restricted eating during typical daytime waking hours could result in similar health benefits for healthy lifespan.
To view the original scientific study click below:
Time-restricted feeding extends healthspan in both sexes and lifespan in male C57BL/6 J mice
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