A new study published in the journal Cell Metabolism on May 8, 2026, suggests that time-restricted eating (TRE) may slow biological aging and improve cardiovascular health. Researchers analyzed data from over 10,000 adults in the US National Health and Nutrition Examination Survey (NHANES) and found that those who ate within a daily window of 8 to 10 hours had lower markers of biological aging in organs such as the liver, kidneys, and heart.
The study, led by Dr. Satchidananda Panda of the Salk Institute, showed that participants who practiced TRE for at least 6 months had a 12% lower risk of cardiovascular disease and a 9% reduction in inflammation markers like C-reactive protein. The findings were consistent across different metabolic health and obesity profiles, suggesting broad applicability.
Biological aging was measured using epigenetic clocks that assess DNA methylation patterns. The researchers noted that the benefits were most pronounced when the eating window started before 10 a.m. and ended before 8 p.m., aligning with the body's circadian rhythms.
Dr. Panda emphasized that the study is observational and does not prove causation, but it adds to growing evidence that when you eat may be as important as what you eat. The findings were supported by a separate analysis of 2,000 participants in a randomized controlled trial, which showed similar improvements in blood pressure and cholesterol levels.
