Low levels of dietary vitamin A has been linked to the risk of invasive cervical cancer.
Current research indicates that retinols are not identifiable as protective against cervical cancer.
However, a diet rich in beta-carotene are highly protective against invasive cervical cancer due to its anti-oxidative properties (La Vecchia, et al., 1984).
Carotenoids and retinols improve the functionality of epithelial tissues. Cervical cancer attacks the integrity of the epithelial tissues in the cervix in its early stages. Making sure that the diet is rich in beta-carotene is a good way to protect the epithelial cells of the cervix.
According to Pizzorno & Murray (2012), 6% of patients with untreated cervical cancer have deficient serum levels of vitamin A, however 38% of patients diagnosed with cervical cancer have stage-related abnormal levels of beta-carotene. Unfortunately, these findings seem to only be useful for preemptive purposes. Intervention with carotenoids have not proven to be successful.
It seems that beta-carotene levels must be maintained as a preventative measure in order to lower the risk of developing cervical cancer. Beta-carotene supplementation alone is not a viable treatment protocol for cervical cancer. Supplementation with beta-carotene is advantageous for the prevention of cervical cancer but cannot be utilized in lieu of allopathic protocols.
For further reading . . .
La Vecchia, C., Franceschi, S., Descarli, A., Gentile, A., Fasoli, M., Pampallona, S., & Tognoni, G. (1984). Dietary vitamin A and the risk of invasive cervical cancer. International Journal of Cancer, 319-322.
Pizzorno, J. E., & Murray, M. T. (2012). Textbook of natural medicine. Paradise Valley: Elsevier Churchill Livingstone.