Vitamin C: Oral Use

Vitamin C, available in several foods and dietary supplements, shows some anticancer effects, including better survival among people with breast cancer.

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Vitamin C: Intravenous Use

Vitamin C can be given intravenously to achieve much higher blood levels and enhance its antioxidant and anti-inflammatory effects, with limited evidence of improved cancer survival when used with conventional treatments.

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Reishi Mushroom

Reishi mushroom is a natural product that may enhance immunity and response to chemo/radiotherapy, improve quality of life, and manage some side effects. 

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Metformin

Metformin, used to manage diabetes, shows some benefits in lower risks of cancer and better survival, mostly among people with diabetes or high blood sugar.

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Low-dose Naltrexone

This prescription drug is used off-label in low doses to treat people with cancer, with notable but very preliminary successes in cases where the cancers were difficult-to-treat or quite advanced.

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Ketogenic Diet

Ketogenic diets are high in fat, moderate in protein and low in carbohydrates, with weak to preliminary evidence of anticancer effects, relief of side effects, and benefits on your body terrain.

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Fasting or Calorie Restriction

Calorie restriction and fasting, whether for 12 or more hours every night or occasionally for longer periods, can contribute to lower body weight, blood sugar, and insulin resistance, plus fewer unpleasant chemotherapy-related side effects.

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Diindolylmethane

Diindolylmethane (DIM) is created naturally when you digest cruciferous vegetables, and it’s also a nutritional supplement with possible anticancer effects.

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Copper Chelation

Copper promotes the formation of blood vessels, including those that supply tumors. Depleting copper can deprive the tumor of its suppliers.

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Cimetidine and Other H2 Blockers

H2 blockers, used to treat gastrointestinal ulcers and/or reduce stomach acid, may improve survival among people with cancer, especially after colorectal cancer resection.

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