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Antioxidant supplements during cancer treatments: where do we stand?

K K Hamilton1

  • 1Teachers College, Columbia University, New York, NY, USA.

Clinical Journal of Oncology Nursing
|April 15, 2003
PubMed

Insights

Antioxidants may help reduce oxidative damage, but their impact on cancer therapies is not fully understood. An antioxidant-rich diet is recommended over high-dose supplements during cancer treatment.

Area of Science:

  • Oncology
  • Pharmacology
  • Nutritional Science

Background:

  • Chemotherapeutic agents utilize diverse mechanisms for cytotoxic activity.
  • Some chemotherapy drugs do not rely on reactive oxygen species (ROS), making them less vulnerable to antioxidant interference.
  • The precise impact of antioxidant supplementation on various cancer treatments remains under investigation.

Purpose of the Study:

  • To evaluate the role of antioxidants in cancer therapy.
  • To determine the safety and efficacy of antioxidant supplementation for cancer patients.
  • To clarify the relationship between cancer, its treatments, and antioxidant use.

Main Methods:

  • Review of existing literature on chemotherapy mechanisms and antioxidant effects.
  • Analysis of studies investigating the interaction between antioxidants and cancer treatments.
  • Consideration of pharmacologic actions not dependent on reactive oxygen species (ROS).

Main Results:

  • Antioxidants are scientifically supported to reduce extraneous oxidative damage.
  • The efficacy of high-dose antioxidant supplements during cancer therapy is not definitively established.
  • Certain chemotherapeutic agents' effectiveness may be influenced by antioxidants.

Conclusions:

  • An antioxidant-rich diet is advisable for cancer patients due to its proven benefits in reducing oxidative stress.
  • Caution is advised regarding high-dose antioxidant supplementation during cancer therapy due to insufficient evidence.
  • Further research is needed to elucidate the complex interactions between cancer types, treatments, and supplemental antioxidants.

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