What role do antioxidants play in nutrition?

Antioxidants play a vital role in protecting the body from oxidative stress and damage. They are compounds that help neutralize free radicals—unstable molecules that can harm cells and contribute to various diseases, including cancer and heart disease. By stabilizing these free radicals, antioxidants mitigate their harmful effects, thus promoting overall cellular health and reducing the risk of chronic diseases.

Additionally, the protective role of antioxidants is crucial in maintaining the integrity of our DNA and cellular structures. They work by scavenging free radicals and reducing oxidative damage, which can lead to inflammation and chronic illness if left unchecked. This aspect makes antioxidants significant components in our diet, often derived from a variety of fruits, vegetables, nuts, and whole grains that are rich in vitamins such as vitamin C and E, as well as other phytonutrients.

In contrast, the other options present roles that are unrelated to the core function of antioxidants in nutrition. For example, while energy provision pertains to macronutrients, antioxidants do not provide energy. Regulatory functions over metabolism involve complex biological processes not directly linked to antioxidant activity. Building muscle tissue is primarily the role of proteins and certain amino acids, which is separate from the antioxidant function. Thus, the defining attribute of antioxidants lies in their protective role against oxidative