Written from the studies on PubMed, searched on 11 Nov 2026. Every number below comes from a study listed under Sources.
The claim
Posts online say that vitamin C (incl. high-dose) helps with cervical cancer.
Where research stands
We found 25 published papers on vitamin C (incl. high-dose) and cervical cancer. They were published between 1956 and 2026. 2 of them are studies in people. 1 of them compared people who got it with a group that did not. 2 were studies in animals, and 9 were only in cells in the lab. 1 paper is a review that sums up other studies.
- 2In people1 with a comparison group
- 2In animals
- 9Only in the lab
What the studies found
We have not summed up these studies in words yet. The most important papers are listed under Sources.
Verdict
Vitamin C (incl. high-dose) has been tested in randomised trials in people with cervical cancer.
What this means for you: A study in people is not proof that it helps you. Do not stop or change your medicines because of it. Ask your doctor before you start taking it.
Sources
- Randomized double-blind trial of beta-carotene and vitamin C in women with minor cervical abnormalities.1999 · Br J Cancer · Randomised trial
- [Frequency of HPV infection and the level of ascorbic acid in serum of women with cervix dysplasia].1996 · Med Dosw Mikrobiol · Study in people
- Association between vitamin C Intake and the risk of cervical neoplasia: A meta-analysis.2016 · Nutr Cancer · Review
- In vivo assessment of imoxide and diluted vitamin C's inhibitory effects on cervical cancer in mice.2026 · Iran J Basic Med Sci · In animals
- Influence of ascorbic acid on MCA-induced carcinogenesis in the uterine cervix of mice.1993 · Cancer Lett · In animals
- Mechanisms and Applications of the Anti-cancer Effect of Pharmacological Ascorbic Acid in Cervical Cancer Cells.2020 · Front Oncol · In the lab
- Vitamin C may exert variable effects on viability and proliferation of HeLa cells exhibiting high and low chromosomal instability.2019 · Adv Clin Exp Med · In the lab
- Vitamin C in synergism with cisplatin induces cell death in cervical cancer cells through altered redox cycling and p53 upregulation.2016 · J Cancer Res Clin Oncol · In the lab
- Phthalocyanine-based fluorescence probes for detecting ascorbic acid: phthalocyaninatosilicon covalently linked to TEMPO radicals.2011 · Chem Commun (Camb) · In the lab
- Serum carotene, vitamin A, and vitamin C levels in breast cancer and cancer of the uterine cervix.1996 · Nutr Cancer · Other paper
- Importance of supplemental vitamin C in determining serum ascorbic acid in controls from a cervical cancer case-control study: implications for epidemiological studies.1994 · Nutr Cancer · Other paper
- Folate, vitamin C, and cervical intraepithelial neoplasia.1992 · Cancer Epidemiol Biomarkers Prev · Other paper
- Plasma reduced and total ascorbic acid in human uterine cervix dysplasias and cancer.1987 · Ann N Y Acad Sci · Other paper
