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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Turmeric and Curcumin

Turmeric, with the active component curcumin, is both a food and dietary supplement that may promote a better immune response and blood sugar levels, and may also help you 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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Berberine

Berberine, an active ingredient in several plants, shows good effects in managing high blood sugar and excess body weight, plus lower risk of colorectal cancer.

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