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Evidence-Based Supplement Research

Evidence-Based Supplement Research

Vitamin B3 and Improved Dark Adaptation

Doses used in studies

mg/day: 500 (median 500, IQR 500–500) — 1 study

Time to effect

Median: 6 months · IQR 6 months–6 months · Range 6 months–6 months — Reported in 1 of 1 study

1 of 1 paper

Changes in Quality of Life Among Glaucoma Patients Following Six Months of Niacinamide Supplementation.
- 2025-08-27
- Clinical Trial
- Nutrients 17(17)
- - Constantin Alin Nicola
  - Maria Cristina Marinescu
  - Anne Marie Firan
  - Georgica Tartea
  - Mihaela Simona Naidin
  - Radu Constantin Ciuluvica
  - Marina Daniela Dimulescu
  - Nicoleta Mirela Voicu
  - Carmen Marinela Mihailescu
  - Andreea-Daniela Meca
  - Maria Bogdan
  - Adina Turcu-Stiolica
- PubMed: 40944166
- DOI: 10.3390/nu17172775
5 Insights on
- Improved Dark Adaptation
- High evidence
- Rigorous Journal
- Clinical
glare and dark adaptation (mean difference = -5.24, 95% CI: [-0.33, -0.14], p < 0.001)
Effect
Beneficial
Effect size
Small
Significant
Yes
Dose
500 mg daily