What is the role of antioxidants in nutrition?

Antioxidants play a crucial role in nutrition by protecting cells from oxidative damage. They are compounds that can neutralize free radicals—unstable molecules that can cause harm to cells, proteins, and DNA when their levels become too high. This oxidative stress is linked to various chronic diseases, including cancer, cardiovascular diseases, and neurodegenerative disorders. By combating the effects of oxidative stress, antioxidants help maintain cellular integrity and overall health.

Cellular damage from free radicals can accelerate the aging process and contribute to many diseases. Thus, a diet rich in antioxidants, found in fruits, vegetables, nuts, and whole grains, can be beneficial in maintaining health and preventing disease. This protective role is why antioxidants are often emphasized in discussions about nutrition and health.