Vitamin D3 and Improved Maximal Power

Doses used in studies

IU/day: 6,000 (median 6,000, IQR 6,000–6,000) — 1 study

Time to effect

Median: 4 weeks · IQR 4 weeks–4 weeks · Range 4 weeks–4 weeks — Reported in 1 of 1 study

1 of 1 paper

Differential and Dose-Dependent Redistribution of Vitamin D Metabolites After Acute High-Intensity Exercise in Mixed Martial Arts Athletes and Untrained Men: Pilot Study.

2026-03-26
RCT
Nutrients 18(7)
- Katarzyna Patrycja Dzik
- Katarzyna Jagłowska
- Miłosz Palicki
- Sylwester Kujach
- Piotr Sawicki
- Konrad Kowalski
- Jan Jacek Kaczor

PubMed: 41978112
DOI: 10.3390/nu18071061

4 Insights on

Improved Maximal Power

High evidence
Rigorous Journal
Athletes

In contrast, 6000 IU/day increased 25(OH)D3 in MMA athletes to a sufficient concentration (p = 0.001) and improved maximal power (+7.5%), mean power (+4.9%), and total work (+5.0%).

Effect: Beneficial
Effect size: Moderate
Dose: 6000 IU/day