Jul 12, 2023 · What are antioxidants? Antioxidants are molecules that fight free radicals in your body. Free radicals are compounds that can cause harm if their levels become too high in your …

Originally, the term antioxidant specifically referred to a chemical that prevented the consumption of oxygen.

The meaning of ANTIOXIDANT is a substance (such as beta-carotene or vitamin C) that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals.

Nov 9, 2025 · What Are Antioxidants? Antioxidants are molecules present in your body and found in plant foods that counteract oxidative stress.

Some substances that act as antioxidants in one situation may be pro-oxidants—electron grabbers—in a different situation. Another big misconception is that antioxidants are …

Dec 27, 2021 · What are antioxidants? “Antioxidants are naturally occurring chemicals in foods that can serve as a defense against free radicals,” explains Hopsecger.

Apr 20, 2025 · What Are Antioxidants? Antioxidants are substances that protect your body from the effects of unstable molecules called free radicals.

Dec 13, 2025 · Antioxidant, any of various chemical compounds added to certain foods, natural and synthetic rubbers, gasolines, and other substances to retard autoxidation, the process by …

antioxidant (AN-tee-OK-sih-dent) A substance that protects cells from the damage caused by free radicals (unstable molecules made by the process of oxidation during normal metabolism). …

Antioxidants, those healthy compounds most often associated with fruits and vegetables.