Oxidative stress conditions are generated by an imbalance between the formation of reactive oxygen (ROS) species and the cellular antioxidant capacity that can be attributed to increased ROS generation and/or the dysfunction of the natural antioxidant system. It is widely accepted by the scientific community that oxidative stress is involved in different neurodegenerative diseases. Antioxidant dietary intake can have positive effects on oxidative stress. In fact, many dietary antioxidants are highly efficient in preventing and reducing oxidative damage and act as free radical scavengers. A huge amount of vegetables, fruits, and berries are a rich source of natural antioxidants, such as anthocyanins, biophenols, vitamins, and other phytochemicals, which are actively involved in slowing down the aging process. Several studies have shown that nutraceutical molecules, such as carotenoids, polyphenols, and omega-3s, when consumed daily, reduce the risks of chronic neurodegenerative diseases.
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