Glycan age
An age-related signal from sugar structures on antibodies.
AI-assisted editorial draft · Source check: 6 September 2026 · Independent reviewer: not yet assigned
What it measures
Patterns in glycans attached to immunoglobulin G (IgG) antibodies.
Source 1: Journals of Gerontology / Krištić et al.Required inputs
A blood sample, glycan analysis and a defined prediction model.
How it was developed
The 2014 primary study examined how IgG glycans varied with age and physiological characteristics.
Source 1: Journals of Gerontology / Krištić et al.Outcome associations
That study supports age correlations and associations with physiological measures. It does not by itself establish that acting on a commercial score improves health.
Source 1: Journals of Gerontology / Krištić et al.Limitations
The immune-related signal is only one aspect of aging. Grade C reflects the scope of the cited evidence, not a universal judgment on glycan research.
Can you calculate it yourself?
No ordinary home calculation is possible without laboratory glycan measurements and the model.
Commercial use
GlycanAge reports an age estimate and glycan indexes. Verify the current assay, model and local sample process.
Source 1: Journals of Gerontology / Krištić et al.Source 2: GlycanAgeSources & verification
- Glycans are a novel biomarker of chronological and biological age (2014)
Journals of Gerontology / Krištić et al. · Accessed 2026-09-06
- The GlycanAge test
GlycanAge · Accessed 2026-09-06