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Encyclopedia of Nutritional Psychology

Free Radicals

Evidence-informed definition Updated May 14, 2026 How to cite this entry

Free radicals are reactive molecules with unpaired electrons, causing them to seek stability by taking electrons from other molecules. This process, called oxidative stress, can damage cells and is linked to aging and diseases. Antioxidants neutralize free radicals by donating electrons, preventing harm.

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Written by The Center for Nutritional Psychology
Reviewed by CNP Encyclopedia Editorial Board
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The Center for Nutritional Psychology. (2026). Free Radicals. In Encyclopedia of Nutritional Psychology. The Center for Nutritional Psychology.

https://www.nutritional-psychology.org/encyclopedia/free-radicals/
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