Which statement about antioxidants is true?

Antioxidants are substances that play a crucial role in protecting the body from oxidative stress by neutralizing free radicals, which are unstable molecules that can cause cellular damage. Free radicals are produced from various sources, including environmental factors like pollution and UV radiation, as well as normal metabolic processes. By neutralizing these harmful free radicals, antioxidants help to reduce the risk of chronic diseases, improve skin health, and support overall metabolic function.

The other statements do not accurately reflect the roles or sources of antioxidants. Some antioxidants can be produced by the body, but many are also found in a variety of fruits, vegetables, and whole foods, highlighting their dietary importance. Additionally, while some antioxidants can be found in animal products, they are predominantly abundant in plant-based sources, such as berries, nuts, and leafy greens. Therefore, the assertion that antioxidants can help neutralize harmful free radicals is both accurate and essential for understanding their protective benefits in health and skincare.