# Vitamin B12 Supplementation Study

> **NCT00826657** · NA · COMPLETED · sponsor: **USDA, Western Human Nutrition Research Center** · enrollment: 180 (actual)

## Conditions studied

- Vitamin B12 Deficiency

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin B12
- **DIETARY_SUPPLEMENT:** placebo

## Key facts

- **NCT ID:** NCT00826657
- **Lead sponsor:** USDA, Western Human Nutrition Research Center
- **Sponsor class:** FED
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2004-10
- **Primary completion:** 2005-08
- **Final completion:** 2006-11
- **Target enrollment:** 180 (ACTUAL)
- **Last updated:** 2015-05-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00826657

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00826657, "Vitamin B12 Supplementation Study". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT00826657. Licensed CC0.

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