Fenbendazole and Ivermectin in Cancer Care: What the Research Actually Shows

A clinical nutritionist's review of mechanisms — including p53 reactivation, microtubule disruption, glycolysis inhibition, and immune synergy — for two of the most-discussed repurposed antiparasitics in integrative oncology.

Researched and written by Keith Bishop, Integrative Cancer Educator, Cancer Coach, Clinical Nutritionist, Retired Pharmacist, and Founder of Prevail Over Cancer.

You've heard the names. A friend mentioned them. A YouTube video swore by them. A Facebook group of 100,000 members says they cured stage IV cancer. And your oncologist either rolled their eyes or warned you against them.

So what is actually true about fenbendazole and ivermectin in cancer care?

After three decades as a pharmacist and now as a clinical nutritionist and cancer coach working with patients every day, I want to walk you through what the published research actually shows — the mechanisms, the preclinical data, th...

Researched and written by Keith Bishop, Integrative Cancer Educator, Cancer Coach, Clinical Nutritionist, Retired Pharmacist, and Founder of Prevail Over Cancer.

The Big Idea in Plain Language

Binders are sticky on the inside. They grab things. That sounds helpful when the thing is a toxin or a heavy metal. But binders are not smart. They cannot tell the difference between a toxin, your prescription drug, your fish oil, and the iron in your dinner.

If you take a binder at the wrong time, you can block the very things that are keeping you alive and helping you heal.

This blog walks you through what each binder does, what it can take from you, and how to time them safely. We will also look at the rare times binders are truly needed.

Quick Look at the Big Five Binders

Why a single lactate dehydrogenase result tells you very little — and how a pattern of LDH tests across time can show you whether your cancer is advancing, retreating, or holding steady.

IMPORTANT — Please Read Before Using This Document This material is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Statements regarding dietary supplements have not been evaluated by the FDA. Always consult your qualified healthcare practitioner before making changes to your protocol.

A Snapshot vs. a Movie

A single LDH result is a snapshot. It tells you where the number sits today — and very little else.

A series of LDH results is something else entirely. It's a movie. It tells you which direction the metabolic engine of your cancer is moving. It tells you whether your tumor burden is climbing, plateauing, or shrinking. It tells you whether your current treatment — conventional, integrative, or both — is actually working at the cellular ...

How to shop strategically, reduce pesticide exposure, and wash your produce the right way — including the evidence-based baking soda method.

If you or someone you love is navigating a cancer diagnosis, the food choices you make every single day matter. Not just in terms of nutrition, but in terms of what may be riding along on your produce when it arrives at your plate.

Every year, the Environmental Working Group (EWG) analyzes data from the U.S. Department of Agriculture (USDA) and the Food and Drug Administration (FDA) to identify which fruits and vegetables carry the highest — and lowest — levels of pesticide residues. Their findings are published as two iconic lists: the Dirty Dozen™ and the Clean 15™.

At Prevail Over Cancer, we follow the principle: Prevail. Assess. Don't Guess.™ That means making informed decisions grounded in real data — including the data on what's sprayed on your food.

This guide will walk you through both lists, explain why pesticide exposure matters in t...

By Keith Bishop | Clinical Nutritionist, Cancer Coach, Retired Pharmacist | Prevail Over Cancer

If your liver has already done the hard work of neutralizing a toxin or excess hormone — but your gut is quietly undoing all of that work before it can leave your body — you have an enzyme problem.

That enzyme is called beta-glucuronidase. And one of the most-researched natural compounds for addressing it is calcium D-glucarate.

In this post, we'll break down exactly what calcium D-glucarate is, how it works at the biochemical level, what the research shows across multiple cancer types, and where it fits inside a comprehensive integrative oncology protocol.

What Is Calcium D-Glucarate?

Calcium D-glucarate is the calcium salt of D-glucaric acid — a naturally occurring compound produced in small amounts by the human body and found abundantly in a variety of plant foods. The calcium is there for stability in supplement form. The active ingredient is the glucarate portion.

Glucaric a...

Broccoli Sprouts and Cancer: The Complete Science of Sulforaphane

If you add only one food to your anticancer nutrition plan, the research points strongly to one answer: broccoli sprouts. These tiny, unassuming seedlings — available at most grocery stores or easy to grow at home — contain concentrations of the most well-studied anticancer phytochemical on Earth.

That compound is sulforaphane (SFN) — an isothiocyanate derived from cruciferous vegetables that has now been investigated in over 3,000 published studies. And unlike many "superfoods" hyped on social media, sulforaphane's mechanisms are deeply understood at the molecular level, spanning cancer prevention, cancer stem cell targeting, chemotherapy enhancement, radiation sensitization, and immunotherapy support.

This research blog compiles everything the current science tells us about broccoli sprouts and cancer — including how sulforaphane works, how to maximize the amount you produce and absorb, and how it interacts with ...

The Evidence-Based Guide to Active Hexose Correlated Compound — How It Works, What Human Studies Show, and How to Use It Strategically With Cancer Treatment

Researched and written by Keith Bishop, Clinical Nutritionist, Cancer Coach, Integrative Cancer Educator, Retired Pharmacist, Founder of Prevail Over Cancer and the Prevail Protocol.

If you’ve been diagnosed with cancer — or you’re supporting someone who has — you’ve probably heard about mushroom-based immune supplements. But not all mushroom extracts are created equal. AHCC (Active Hexose Correlated Compound) stands apart from the crowd, not because of marketing hype, but because of an unusually strong body of clinical research, including human trials published in peer-reviewed journals.

In this post, I’m going to walk you through exactly what AHCC is, where it comes from, how it differs from beta-glucan, what the laboratory and animal studies show, what human clinical studies have found, how it interacts with chemotherapy, rad...

Understanding what Modified Citrus Pectin (MCP) Pectasol-C® is, how it interacts with galectin‑3 and cancer, what the research shows, and what patients should know about safety, interactions, and integrative oncology considerations.

What Is Modified Citrus Pectin?

Modified citrus pectin (MCP), Pectasol-C, is a form of pectin derived from the peel and pulp of citrus fruits. Unlike regular pectin—which is too large to be absorbed—MCP is processed into smaller, low‑molecular‑weight fragments that the body can absorb more easily.

MCP is rich in galactoside residues, which give it a unique ability to bind to certain proteins involved in cancer biology, especially galectin‑3.

Pectasol-C® is a brand of MCP. 

How MCP May Influence Cancer Biology

Much of MCP’s anticancer interest comes from its ability to bind and block galectin‑3, a protein involved in:

• Tumor growth[i]
• cell adhesion
• metastasis[ii]
• angiogenesis
• immune evasion
• apoptosis resistance

Galectin‑3 is overexpressed ...

The Anticancer Actions of IV Vitamin C: Mechanisms, Dosing, Safety Labs, and Integration with Oncology Care

Researched and written by Keith Bishop, Clinical Nutritionist, Cancer Coach, and Founder of Prevail Over Cancer™, and the Prevail Protocol™

High-dose intravenous vitamin C (IVC) has reemerged as a promising adjunctive therapy in integrative oncology. Modern research highlights its unique pharmacology, potential anticancer mechanisms, and its ability to support patients undergoing chemotherapy, radiation, and immunotherapy. This guide breaks down the science, dosing considerations, safety labs, and clinical integration—supported by peer-reviewed medical literature.

What Makes IV Vitamin C Different From Oral Vitamin C?

Oral vitamin C absorption is tightly limited by intestinal transporters, which cap blood levels even at high doses. In contrast, IV administration bypasses intestinal absorption and produces blood concentrations 100–500× higher than those required for a...