# Vitamin C Fatigue Randomized Trial: What the Evidence Says
Canonical: https://www.migaku.app/guides/vitamin-c-fatigue-randomized-trial-evidence-review
Category: evidence-review
Summary: Vitamin C Fatigue Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are rand
Last reviewed: 2026-06-06
Reviewed by: Migaku Evidence Review
# Vitamin C Fatigue Randomized Trial: What the Evidence Says

## Quick Answer

Vitamin C Fatigue Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are randomized trial, so conclusions should be framed as evidence-aware guidance rather than medical advice.

## Key Takeaways

- This page is generated only from sources stored in the Migaku evidence knowledge base.
- Current evidence mix: 1 randomized trial, 1 narrative review.
- Claims should be interpreted with the source type, study design, population, and publication date in mind.
- This article is educational and does not replace care from a qualified clinician.

## Evidence Map

| Source | Evidence type | Level | Date | Identifier |
| --- | --- | ---: | --- | --- |
| Beetroot Plus Vitamin C for Performance and Recovery: Protocol of a Double‐Blind, Placebo‐Controlled, Randomized Crossover Trial in Semi‐Professional Wrestlers | randomized trial | 2 | 2026-05-03 | 10.1002/hsr2.72218 |
| Vitamin B 12 Supplementation: Is More Always Better? | narrative review | 3 | 2026-05-18 | 10.3390/nu18101597 |

## What The Sources Report

- To bridge this evidence gap, the International Olympic Committee has developed a categorization system for nutritional supplements, evaluating them based on the strength of supporting research for athletic performance benefits. [Nojoumi Maedeh (2026); evidence level 2]
- Among these, inorganic nitrate (NO₃⁻) has emerged as a promising ergogenic aid, particularly for high-intensity sports, with evidence from meta-analyzes demonstrating improvements in aerobic and anaerobic performance among recreationally active individuals. [Nojoumi Maedeh (2026); evidence level 2]
- There is also the assumption that a water-soluble vitamin carries negligible risk. [Yepes-Calderón Manuela (2026); evidence level 3]
- A critical appraisal is warranted to delineate evidence-based indications, clarify benefits and harms in replete populations, and guide prudent dosing and monitoring. [Yepes-Calderón Manuela (2026); evidence level 3]

## How To Read This Evidence

Evidence level 1 generally reflects systematic reviews or meta-analyses. Level 2 includes randomized trials, guidelines, or public-health guidance. Level 3 usually reflects observational or narrative-review evidence. Level 4 is weaker or early-stage evidence. The level is a sorting aid, not a final quality grade.

## Practical Interpretation

There is trial evidence in the current set, but population and intervention details still matter. For vitamin C fatigue randomized trial, the next editorial step is to add more targeted sources and separate strong findings from early or indirect evidence.

## Limits Of This First Pass

This is a small-batch MVP article. It uses the first ingested sources for this topic and should be expanded with more targeted searches, license review, and human editorial checks before being treated as a definitive review.

## References

- Nojoumi Maedeh (2026). Beetroot Plus Vitamin C for Performance and Recovery: Protocol of a Double‐Blind, Placebo‐Controlled, Randomized Crossover Trial in Semi‐Professional Wrestlers. DOI: 10.1002/hsr2.72218. PMCID: PMC13136499. PMID: 42088663. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13136499/
- Yepes-Calderón Manuela (2026). Vitamin B 12 Supplementation: Is More Always Better?. DOI: 10.3390/nu18101597. PMCID: PMC13209201. PMID: 42197057. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13209201/

## Safety Note

Health information can change, and individual risk depends on medical history, medications, pregnancy status, age, and diagnosis. Talk with a qualified clinician before changing treatment, supplement, or medication routines.