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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Time in Nature or Forest Bathing

Simply spending time in nature shows benefits both for body terrain factors linked to cancer and for reducing cancer risk. It may also help with symptoms common among people with cancer.

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Melatonin

Melatonin supplements mimic the effects of your own naturally produced melatonin in promoting sleep, and research shows melatonin can have a substantial role in cancer outcomes and side effects.

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Iodine

As an essential nutrient, iodine is needed for thyroid function, and a deficiency is linked to higher risk of thyroid and stomach cancers. Some evidence shows that treatment with molecular iodine before breast cancer surgery may improve tumor response and reduce some side effects.

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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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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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Aspirin

Aspirin is a widely available over-the-counter medication that shows substantial effects at promoting survival and reducing risk of many types of cancer, plus reducing inflammation and managing pain due to inflammation.

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