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What Are Antioxidants? - Definition, Foods & Benefits

Chapter 3 /  Lesson 25   Transcript
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  • 0:04 Antioxidant Defintion
  • 1:13 Antioxidant-Rich Foods
  • 2:29 Antioxidant Benefits
  • 3:09 Lesson Summary
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Lesson Transcript
Instructor: Donna Ricketts

Donna Ricketts is a health educator with 15 years of professional experience designing health and wellness programs for adults and children.

In this lesson, you will learn about antioxidants and why they are important to your health. You will also learn how to incorporate foods that are rich in antioxidants into your daily diet.

Antioxidant Definition

Your body is in a constant battle against infection, diseases and the formation of free radicals. However, there's a secret weapon that can help you fight against these things: antioxidants! Antioxidants are elements such as vitamins A, C and E that counteract the damage caused by free radicals and help protect your healthy cells. Free radicals are the molecules that contain unpaired electrons, which make them highly reactive. In this form, they can cause damage by attacking healthy cells, and when these cells grow weakened, you become more vulnerable to disease.

Free radicals may be produced from normal body functions such as breathing or physical activity, but they are mainly formed from your exposure to environmental hazards, such as pesticides, air pollution and cigarette smoke. Antioxidants work to disable the disease-causing free radicals, thus preventing the damage from occurring. Although your body naturally produces antioxidants, it doesn't produce enough to protect you from free radicals, so that is why it is important to include antioxidant-rich foods in your diet on a regular basis.

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You are viewing lesson Lesson 25 in chapter 3 of the course:

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