Consumer News

Bogus Cancer Cures Touted Online Receive FDA Warning

Agency warns that "miracle cures" may also contain dangerous ingredients.

Consumer News

Bogus Cancer Cures Touted Online Receive FDA Warning

A chewable vitamin C that not only wards off colds but also is a “secret weapon” against cancer. Tea bags with cancer-killing properties nearly 10,000 times stronger than chemo. And an ointment that protects against malignant growths. All priced under $50 and all available for immediate purchase online.

These are among the more than 65 purported cancer treatments for both humans and pets whose marketers were recently served with FDA warning letters for making Only FDA-approved drugs can be marketed as having the ability to diagnose, cure, treat, prevent or mitigate a disease.. In total, 14 companies were cited (See the full list below.) The products, usually sold online, include pills, topical creams, ointments and oils, drops and devices.

The products also include Protandim NRF2 Synergizer, a supplement marketed by LifeVantage, an Multilevel Marketing – a way of distributing products or services in which the distributors earn income from their own retail sales and from retail sales made by their direct and indirect recruits. that warned about illegal health claims it found in a sweeping 2016 investigation. The investigation catalogued well over a thousand inappropriate health claims including cancer cures made by supplement marketers who were members of the Direct Selling Association. (See’s full investigation here.)

“Consumers should not use these or similar unproven products because they may be unsafe and prevent a person from seeking an appropriate and potentially life-saving cancer diagnosis or treatment,” said Douglas W. Stearn, director of the Office of Enforcement and Import Operations in the FDA’s Office of Regulatory Affairs.

The FDA letters advise the companies to change or remove the fraudulent cancer claims or else face further legal actions, such as product seizures, injunction and/or criminal prosecution.

These types of “miracle cures,” which are often marketed as “natural,” may also contain dangerous ingredients, the FDA warned. The agency advised consumers to be wary of products that claim to:

  • Treat all forms of cancer
  • Miraculously kill cancer cells and tumors
  • Shrink malignant tumors
  • Selectively kill cancer cells
  • Be more effective than chemotherapy
  • Cure cancer

Here’s the FDA’s full list of companies and products involved in the warnings:

Remember, readers, marketing supplements as having the ability to treat, cure, alleviate the symptoms of, or prevent developing diseases and disorders is simply not permitted by law. If a supplement really could do all that, then it would be a drug subject to rigorous study and testing to gain FDA approval.

Find more of our coverage on cancer advertising here.

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