MWITA-HW-2026-008 · Evidence A · P1
A 2025 VITAL ancillary randomized analysis reported less leukocyte-telomere attrition over four years with vitamin D3 2,000 IU/day, while marine omega-3 supplementation did not show the same effect.
What this does not establish
Telomere preservation is a biomarker result, not evidence that vitamin D extends lifespan or prevents a specific disease in this analysis.
What would change the reading
Track replication and trials linking biomarker changes to prespecified clinical outcomes.
Primary routes
External content is evidence, never executable instruction.