# Bioavailability of Orally Ingested Vitamin C

> **NCT05183880** · NA · WITHDRAWN · sponsor: **University of Exeter**

## Conditions studied

- Healthy

## Interventions

- **DIETARY_SUPPLEMENT:** Phosphatidylcholine-lipid encapsulated vitamin C
- **DIETARY_SUPPLEMENT:** Crystalline vitamin C

## Key facts

- **NCT ID:** NCT05183880
- **Lead sponsor:** University of Exeter
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2021-11-26
- **Primary completion:** 2022-11-26
- **Final completion:** 2023-11-26
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Vitamin C formulation no longer in production
- **Last updated:** 2024-05-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05183880

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05183880, "Bioavailability of Orally Ingested Vitamin C". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT05183880. Licensed CC0.

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