What are antioxidants known for?

Antioxidants are primarily recognized for their role in protecting the body from oxidative stress. Oxidative stress occurs when there is an imbalance between free radicals – unstable molecules that can damage cells – and antioxidants in the body. Antioxidants neutralize these free radicals, thereby reducing cellular damage and lowering the risk of chronic diseases, such as heart disease and cancer. Common antioxidants include vitamins C and E, selenium, and various phytochemicals found in fruits and vegetables.

The other options reflect different functions unrelated to the core role of antioxidants. Increasing appetite, enhancing food flavor, and improving digestion are not direct actions of antioxidants. Instead, these functions may relate to other nutrients or dietary components, highlighting the specific and protective nature of antioxidants in health.