Natural products (excluding registered drugs)

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Vitamin E

Vitamin E is fat-soluble and can be found in a wealth of food sources, e.g., green leafy vegetables, whole grains, nuts and seeds, wheat germ, eggs, and in plant oils (especially oils derived from safflower, sunflower, cottonseed, and palm).


Glyconutrients have not been shown to treat cancer in humans.


There is no scientific evidence to support the traditional uses of Glehnia.

Sodium bicarbonate

Sodium bicarbonate is a substance the human body ordinarily uses to maintain normal acid concentrations. It is currently investigated if sodium bicarbonate can be used in people with cancer to reduce acid levels in their tumors.

Intravenous high-dose vitamin C

Vitamin C is an essential vitamin for humans that is found in all fruits and vegetables. Because of the way vitamin C is absorbed in the body, it is necessary to administer it intravenously in order to attain and maintain high concentrations of vitamin C.

Transfer Factor

Transfer factors have not been shown to treat or prevent cancer.


The anticancer effects of Triphala have not been confirmed in humans.

Tian Xian

The claims of anticancer effects of Tian Xian are based on anecdotal reports. Scientific evidence is lacking.

Tea Tree Oil

Tea tree oil may be effective in treating certain skin conditions.


There is no evidence to support use of Stillingia to treat cancer, infections, or other medical conditions.