What it is: Antioxidants are compounds that protect cells from damage caused by free radicals—unstable molecules that can harm cellular structures through a process called oxidative stress. Antioxidants neutralize free radicals by donating electrons, preventing cellular damage.
Common examples:
Vitamins: Vitamin C, Vitamin E, beta-carotene (provitamin A)
Minerals: Selenium, zinc
Phytochemicals: Resveratrol, quercetin, curcumin, anthocyanins
Enzymes: Glutathione, superoxide dismutase (SOD), catalase
Why they matter: Oxidative stress is linked to aging and numerous chronic diseases, including heart disease, cancer, and neurodegenerative conditions. Antioxidants help protect against this damage, supporting overall health, immune function, and potentially reducing the risk of chronic diseases.
In supplements: Available as individual antioxidants (like vitamin C or resveratrol), antioxidant blends, or naturally occurring in fruit and vegetable extracts.
