Contraindicated in patients with G6PD deficiency and Sickle Cell disease.
Resources:
Pullar, J. M., Carr, A. C., & Vissers, M. C. M. (2017, August 12). The roles of Vitamin C in Skin Health. Nutrients. https://pmc.ncbi.nlm.nih.gov/articles/PMC5579659/nih.gov/articles/PMC5579659/
Suh, S.-Y., Bae, W. K., Ahn, H.-Y., Choi, S.-E., Jung, G.-C., & Yeom, C. H. (2012, January 20). Intravenous vitamin C administration reduces fatigue in office workers: A double-blind randomized controlled trial. Nutrition journal. https://pmc.ncbi.nlm.nih.gov/articles/PMC3273429/
Zasowska-Nowak, A., Nowak, P. J., & Ciałkowska-Rysz, A. (2021, February 26). High-dose vitamin C in advanced-stage cancer patients. Nutrients. https://pmc.ncbi.nlm.nih.gov/articles/PMC7996511/