Missing Script · Evidence review · October 2, 2026
You look up one supplement. Twenty minutes later, you have twelve tabs open and somebody is offering a cancer cure in a bottle.
I would like us to have a better place to begin.
The National Cancer Institute has useful resources for this conversation. They are easy to confuse with one another, and neither is accurately described as a “natural cures database.” One helps readers examine evidence. The other helps scientists discover potential drugs.
For patients: the PDQ evidence summaries
NCI’s complementary and alternative medicine index links to PDQ summaries in patient and health-professional versions. Topics include acupuncture, curcumin, intravenous vitamin C and interactions between cancer therapies, foods and supplements.
The patient versions are a place to start; the professional versions offer more detail. PDQ is intended to support informed decisions using published evidence. A topic being included does not mean NCI endorses it or considers it effective.
Check the update status. The index separates summaries being regularly updated from older reference summaries that are no longer updated. A familiar-looking page may not reflect the newest research.
For researchers: natural-products drug discovery
The NCI Program for Natural Products Discovery is a separate research resource. Its repository contains more than 230,000 extracts from plants, marine organisms and microbes, available to researchers for screening and isolation of biologically active compounds.
That is a starting point for drug discovery. Activity in a laboratory assay does not establish a safe dose, a treatment benefit in people or the effectiveness of a commercial supplement. The distance between an extract library and a prescription is filled with questions that still need answering.
Why I want these resources in the conversation
“Natural” can be used to sell certainty. “There isn’t enough evidence” can end a conversation before we have understood the question.
I think both habits leave patients with more work to do. What if we opened a source together and asked what it actually says?
Maybe someone is asking about nausea relief, not tumor shrinkage. Maybe the product they found has a different formulation from the one studied. Maybe the research is old. Or maybe a promising intervention really does deserve more serious testing.
A good resource won’t make all those decisions for us. It can give the conversation a shared starting point. I would like to see these links offered more routinely in clinic education, support groups and discussions about supplements.
A five-minute way to use it
- Write down the goal: symptom relief, daily function or an effect on the cancer itself.
- Open the patient summary and check when it was updated and whether updates continue.
- Look for studies in people with a similar diagnosis and treatment.
- Read the safety and interaction information as carefully as the possible benefits.
- Bring the link and the exact product label to your care team.
If your supplement isn’t listed, that absence is not a verdict. Ask your team or pharmacist to help assess it. Likewise, a listing is not permission to substitute it for prescribed care.
The missing script here is an invitation to look at the evidence together. Curiosity is welcome. So is a clear explanation of what remains unknown.
Bookmark these
- NCI patient CAM and integrative-care summaries
- NCI health-professional summaries
- NCI Program for Natural Products Discovery
General education, not individualized medical advice. Discuss supplements and treatment decisions with your oncology team.
