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Evidence-Based Supplement Research

Evidence-Based Supplement Research

Vitamin D and Reduced Long COVID Symptom Number

Doses used in studies

IU/day: 2,000 (median 2,000, IQR 2,000–2,000) — 1 study

Time to effect

Median: 5.6 months · IQR 5.6 months–5.6 months · Range 5.6 months–5.6 months — Reported in 1 of 1 study

1 of 1 paper

Vitamins K2 and D3 Improve Long COVID, Fungal Translocation, and Inflammation: Randomized Controlled Trial.
- 2025-01-16
- RCT · n = 151
- Nutrients 17(2)
- - Ornina Atieh
  - Joviane Daher
  - Jared C Durieux
  - Marc Abboud
  - Danielle Labbato
  - Jhony Baissary
  - Ziad Koberssy
  - Kate Ailstock
  - Morgan Cummings
  - Nicholas T Funderburg
  - Grace A McComsey
- PubMed: 39861434
- DOI: 10.3390/nu17020304
6 Insights on
- Reduced Long COVID Symptom Number
- High evidence
- Large Human Trial
- Rigorous Journal
- Clinical
The average number of LC symptoms remained stable in the vitamin K2/D3 arm but increased in the SOC arm (p = 0.03).
Effect
Beneficial
Effect size
Small
Significant
Yes
Dose
2000 IU/day