@ransom2026, I think you'll find this Mayo Clinc article helpful:
- High-dose vitamin C: Can it kill cancer cells? https://www.mayoclinic.org/diseases-conditions/cancer/expert-answers/alternative-cancer-treatment/faq-20057968

Excerpt:
"There's still no evidence that vitamin C alone can cure cancer, but researchers are studying whether it might boost the effectiveness of other cancer treatments, such as chemotherapy and radiation therapy, or reduce treatment side effects."

More and more cancer centers and oncology specialists are open to discussing and integrating complementary medicine in programs called Integrative Medicine or Integrative Oncology. Integrative medicine can guide you to supplements, therapies and approaches that help manage cancer treatment lasting side effects. Integrative medicince is offered at many cancer centers of excellence, including Mayo Clinic.

Here's a link to more information about Mayo Clinic's Integrative Medicine programs
– Integrative Medicine and Health https://www.mayoclinic.org/departments-centers/integrative-medicine-health/sections/overview/ovc-20464567