rct
    2025
    High Quality

    Individual and additive effects of vitamin D, omega-3 and exercise on DNA methylation clocks of biological aging in older adults from the DO-HEALTH trial

    Bischoff-Ferrari HA, Gangler S, Wieczorek M

    Published in Nature Aging

    Methodology

    Post hoc analysis of 777 participants in the DO-HEALTH randomised trial of vitamin D 2000 IU/day and/or omega-3 1 g/day and/or home exercise, with four next-generation DNA methylation clocks measured over 3 years

    Key Findings

    Omega-3 alone slowed PhenoAge, GrimAge2 and DunedinPACE; all three treatments had additive benefits on PhenoAge

    Conclusions

    Supplementation produced small but measurable slowing of methylation-based biological aging over three years

    Limitations

    Post hoc analysis; effects equivalent to only a few months of aging

    Supplements Studied

    Vitamin D
    Vitamin

    all three treatments had additive benefits on PhenoAge

    Omega-3 alone slowed the DNAm clocks PhenoAge, GrimAge2 and DunedinPACE, and all three treatments had additive benefits on PhenoAge.

    Outcomes Measured

    Omega-3 alone slowed the DNAm clocks PhenoAge, GrimAge2 and DunedinPACE, and all three treatments had additive benefits on PhenoAge.

    Omega-3 alone slowed the DNAm clocks PhenoAge, GrimAge2 and DunedinPACE, and all three treatments had additive benefits on PhenoAge.

    Study Details

    Year:2025
    Sample Size:777
    Duration:156 weeks
    Quality Score:8/10

    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.