Review of chrononutrition protocols and their links to aging and lifespan
This abstract reviews human observational studies and animal models on chrononutrition. Some protocols showed potential cardiometabolic and healthspan benefits, but observational data linked very short eating windows to higher mortality and biological aging risk. [1]
Automatic summary · not editorially reviewed
The key findings
The review covers human cross-sectional and cohort studies and a range of animal models. [1]
Observational studies reported a U-shaped relationship between eating window duration and mortality risk and biological aging, with elevated risk for windows of 8 hours or less. [1]
The circadian clock, nutrient-sensing pathways and the gut microbiota could be involved, but the precise molecular mechanisms are only beginning to be unraveled. [1]
The source at a glance
- Study type / format
- Review abstract of human observational studies and animal models
- Population / context
- Human cross-sectional and cohort study participants and various animal models, as described in the abstract.
- Summary based on
- Study abstract
- Original publication
- April 17, 2026
Reviewed human studies and animal models
The abstract describes a review of evidence from human cross-sectional and cohort studies and from a range of animal models. It covers time-restricted eating or feeding with a 4–12 hour window, alternate-day fasting and the 5:2 diet. These approaches showed potential to improve cardiometabolic health and healthspan measures in preclinical studies and clinical trials.
Supporting source [1]
U-shaped mortality link for short eating windows
Observational studies reported a U-shaped relationship between the duration of the eating window and mortality risk and biological aging, with elevated risk for windows of 8 hours or less. The abstract also notes that aligning carbohydrate, protein and antioxidant intake with the circadian phase may further optimize health, and discusses irregular meals, breakfast skipping, late-evening intake and high meal frequency in relation to aging-related disease and mortality risk.
Supporting source [1]
Possible mechanisms and open questions
The abstract highlights that the circadian clock, nutrient-sensing pathways and the gut microbiota could be involved in these processes. However, the precise molecular mechanisms by which these feeding patterns reinforce circadian clocks and confer systemic benefits are only beginning to be unraveled. Translating chrononutrition from bench to population-level strategies is described as a critical remaining step toward promoting healthy aging.
Supporting source [1]
How to interpret this
This is an abstract only; the full text was not reviewed. Design details, sample sizes, follow-up and effect sizes are not reported here. The abstract describes a review, so its statements summarize other studies rather than new primary data.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Wang Y, Zhang S, Xiang P, Liu G, Yu A, Yuan H, Jiang L, Shi D. · europepmc.org · April 17, 2026