Antioxidants

Definition

Antioxidants are substances that help protect your cells from damage caused by free radicals, which are unstable molecules that your body produces as a reaction to environmental pressures and other processes.

Scientific / Technical Definition

Antioxidants are molecules that inhibit the oxidation of other molecules. Oxidation is a chemical reaction that can produce free radicals, leading to chain reactions that may damage cells. Antioxidants terminate these reactions by removing free radical intermediates and inhibit further oxidative reactions by being oxidized themselves.

Benefits

• Reduce the risk of chronic diseases such as heart disease and cancer
• Support immune function
• Help delay aging and skin damage
• Improve cognitive function and reduce the risk of neurodegenerative diseases
• Aid in reducing inflammation in the body

Examples

• Vitamin C found in citrus fruits and berries
• Vitamin E found in nuts and seeds
• Beta-carotene found in carrots and sweet potatoes
• Selenium found in grains and seafood
• Flavonoids found in tea, chocolate, and wine

Additional Information

• Effects: This nutrient has the following effects on the body: enhancing immune defense, counteracting oxidative stress, and modulating inflammatory pathways.

Related Terms

• Free radicals
• Oxidative stress
• Vitamin C
• Vitamin E
• Polyphenols

References

• The role of antioxidants in the physiology of the immune system
• Antioxidants: In-depth
• Free Radicals and Antioxidants in Health and Disease