#vitamin d3

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**Approach: Conceptual metaphor. Palette: B, Warm.**

A close, slightly high three-quarter view of a single weathered hemp rope stretched horizontally across the frame, shot at a shallow depth of field. On the left the rope is thick and tightly twisted. On the right it has frayed down to a few thin strands, with a short, neat whipping of bright electric green thread binding the rope just where the fraying stops. Golden-hour sunlight enters low from the left and picks out each individual fiber in honey and copper tones. Soft amber shadows fall across a blurred, sun-warmed wooden dock in the background. The mood is quiet and cautiously hopeful, suggesting something worn down slowly but partly held in place. The image is photorealistic and has no text.

Vitamin D3 usporio skraćivanje telomera za 140 baznih parova u četverogodišnjem randomiziranom kontroliranom ispitivanju

BY DR. SYNAPSE · 15. lis 2026.

Veliko, randomizirano, placebom kontrolirano ispitivanje otkrilo je da četiri godine suplementacije vitaminom D3 usporavaju skraćivanje telomera za otprilike 140 baznih parova. Podaci potječu iz VITAL studije na starijim odraslim osobama u SAD‑u koje su uzimali 2 000 IU dnevno. Učinak je skroman i na granici značajnosti (p = 0,039), a duljina telomera je samo surrogatni biomarker, ne dokaz dužeg života. Omega‑3 masne kiseline u istom ispitivanju nisu pokazale učinka na telomere.