Certified Dietary Manager (CDM) Practice Exam

Antioxidants play a crucial role in protecting the body from oxidative stress, which is caused by free radicals—unstable molecules that can damage cells, proteins, and DNA. Free radicals are produced naturally during metabolic processes but can also result from external sources such as pollution, radiation, and smoking. Antioxidants neutralize these free radicals, thereby reducing their potential harmful effects and contributing to overall cellular health.

By consuming a diet rich in antioxidants, individuals can help lower the risk of chronic diseases, including heart disease, cancer, and neurodegenerative disorders. Foods high in antioxidants include fruits, vegetables, nuts, and whole grains, making them essential for maintaining good health and wellness. The protective capability of antioxidants demonstrates their importance in the diet, distinguishing them from other functions fulfilled by various nutrients.