Vitamin D: from deficient to a stable plateau
26.5 → ~70 on the same daily dose, held for over a year — the maintenance amount turned out to be the repletion amount.
The series
| date | 25-OH vitamin D |
|---|---|
| 2023-12-07 | 26.5 (low) |
| 2024-03-27 | 45.2 |
| 2024-10-31 | 63.3 |
| 2025-06-05 | 71.4 |
| 2025-10-29 | 69.7 |
| 2026-04-16 | 66.0 |
| 2026-06-11 | 59.8 |
What I did
D3 5000 IU + K2 90 mcg, one cap with breakfast · since 2024-03-01, unchanged.
No loading phase, no dose changes — the same daily cap took me from 26.5 to the 60s within a year and has held a 66–71 plateau since. For my body and my sun exposure, 5000 IU is the maintenance dose. (1,25-dihydroxy checked twice in 2025: 52.2, 51.1.)