Alternative and complementary cancer care: what’s out there and how to weigh it

If you’ve ever typed “natural cancer cure” into a search bar at 2 a.m., you’re not alone. And you’re not foolish.

A cancer diagnosis is frightening. Treatment can be hard. And the internet is full of people who say they found another way.

This week on the blog, we’re looking at those other ways, one a day. The therapies people talk about most. The outsiders of cancer medicine, some of whom history partly proved right. And the gentle, natural options that now have real research behind them.

Open-minded, never mocking. And honest about what the evidence shows today.

Alternative, complementary, integrative: three words that matter

These words get used as if they mean the same thing. They don’t.

The US National Center for Complementary and Integrative Health (NCCIH, part of the NIH) draws the line like this:

• Complementary: a non-mainstream practice used together with conventional medicine. Think acupuncture for nausea, massage, yoga or meditation during chemotherapy.
• Alternative: a non-mainstream practice used in place of conventional medicine. Think a juice protocol or an herbal formula instead of surgery or chemo.
• Integrative: bringing conventional and complementary approaches together in a coordinated way. Many US and Canadian cancer centres now have integrative oncology clinics built for exactly this.

Same herb, same diet, same practice. It can be complementary for one person and alternative for another. What changes is whether it sits beside treatment or replaces it.

Why people look beyond standard care

Most people who explore alternatives aren’t anti-science. Many have read a great deal. In the US, people who chose alternative medicine alone for cancer were, on average, more educated and had higher incomes (Yale, Journal of the National Cancer Institute, 2018).

The reasons are human:

• Side effects. Nausea, fatigue, hair loss and nerve pain are real, and some people dread them more than the disease.
• Feeling unheard. A rushed appointment can leave you with more questions than answers.
• Wanting control. Changing your diet or taking herbs is something you can do when so much feels out of your hands.
• Powerful stories. A video of someone who says a remedy worked for them can feel more convincing than a statistic.
• Distrust. Some communities have good historical reasons to be wary of the medical system.

All of these deserve respect. They also deserve good information.

“Alongside” and “instead of” are two very different words when it comes to cancer.

What happens when “alternative” means “instead of”

This is the most important part of the whole week, so here it is plainly.

That second finding is quietly hopeful. Used alongside treatment, many complementary practices are safe and some genuinely help people feel better. The danger is in the swap.

Five questions to ask about any cancer claim

Use these on every post this week, and on anything you read or watch online:

1. Who’s selling? Is the person sharing the claim also selling the product, the retreat or the protocol?
2. Dish, animal or people? Lots of things stop cancer cells growing in a lab dish or a mouse. Far fewer do the same in a person.
3. How many people, compared with what? One remarkable recovery is a story. A trial compares groups, so you can see whether the remedy made the difference.
4. What else was going on? Many famous “it worked for me” stories involve people who were also having surgery, chemo or radiation.
5. Does it ask you to stop treatment? Any approach that tells you to quit your oncologist, or to keep it secret from them, is a red flag.

We used the same approach in our frankincense and cancer myth-check: take the claim seriously, look at where it came from, then see what’s been shown in people.

What’s coming this week

One post a day, each with a plain “What the evidence shows today” box:

• Ivermectin, fenbendazole and mebendazole: the repurposed-drug buzz, and the early trials real cancer researchers are running.
• Cannabis and Rick Simpson oil: the Nova Scotia story, the lab findings and what the research shows in people.
• The Gerson therapy: juices, coffee enemas and a devoted following, plus the parts that overlap with good nutrition.
• The outsiders, part 1: William Coley, Otto Warburg, Linus Pauling, René Caisse and Gaston Naessens, the ones history partly proved right.
• The outsiders, part 2: banned, sued and still followed, from Harry Hoxsey to Barbara O’Neill.
• What helps alongside treatment: exercise, nutrition, acupuncture, mind-body practices and ginger, and where mistletoe research stands.

Before you try anything

Use any of these alongside your oncologist, never instead of treatment.

• Tell your oncology team about every supplement, herb and diet change. Some interact with chemotherapy, immunotherapy or radiation, and some affect blood tests or liver results, which can lead to real treatment being paused.
• Ask about integrative oncology. Many cancer centres have doctors, dietitians and therapists who welcome these conversations.
• Ask about clinical trials. If a therapy is promising, a trial is the safest way to get it. You can search ClinicalTrials.gov with your oncologist.
• Never self-dose prescription or veterinary drugs you’ve read about online.

Need to talk it through? In the US, call the National Cancer Institute’s Cancer Information Service at 1-800-4-CANCER (1-800-422-6237) or visit cancer.gov. In Canada, call the Canadian Cancer Society’s Cancer Information Helpline at 1-888-939-3333.

When to see a doctor right away

Call 911 (US and Canada) for chest pain, trouble breathing, fainting, severe confusion, or a high fever during chemotherapy. Call your care team the same day for new or worsening symptoms, or if you’ve started something new and feel unwell, such as yellowing skin or eyes, dark urine or severe stomach pain.

Sources: NCCIH, Complementary, Alternative, or Integrative Health: What’s In a Name?; Johnson et al., Use of alternative medicine for cancer and its impact on survival, JNCI 2018; Science-Based Medicine summary of the JNCI and JAMA Oncology studies; National Cancer Institute Cancer Information Service; Canadian Cancer Society.