Antioxidant Overview: Benefits, Sources & How They Work

When you hear the term antioxidant, a molecule that slows or stops oxidation in the body. Also known as oxidation inhibitor, it protects cells from damage caused by reactive species.

One of the main targets of antioxidants are free radicals, unstable atoms or molecules that can damage DNA, proteins and cell membranes. When free radicals accumulate, they trigger oxidative stress, a condition where the body’s antioxidant defenses are overwhelmed. This imbalance is linked to aging, heart disease, cancer and many other health issues.

How Antioxidants Help

Antioxidants neutralize free radicals by donating electrons, turning harmful molecules into stable, harmless ones. This simple chemical action antioxidant can slow cellular aging, support immune function and improve recovery after exercise. The process creates a semantic triple: Antioxidants neutralize free radicals, free radicals cause oxidative stress, oxidative stress leads to cellular damage.

People obtain antioxidants from two main routes: dietary supplements, concentrated products like capsules, powders or liquids, and vitamins, essential nutrients such as vitamin C, vitamin E and beta‑carotene that act as antioxidants. Whole foods—berries, leafy greens, nuts and seeds—provide a natural mix of these compounds along with fiber and phytonutrients that work together to keep oxidative stress in check.

Choosing the right source depends on lifestyle and health goals. For example, athletes often turn to antioxidant‑rich supplements to speed up recovery, while older adults may focus on vitamin‑dense foods to protect joint health. Understanding how each source contributes helps you avoid over‑reliance on a single method and ensures a balanced intake.

Below you’ll find a curated selection of articles that dive deeper into specific antioxidants, compare supplement options, explain how diet influences oxidative stress, and offer practical tips for integrating these compounds into daily life. Whether you’re looking for scientific explanations or quick how‑to guides, the collection gives you the tools to make informed decisions about antioxidant use.