Although oxidation reactions are crucial for life, they can also be damaging; plants and animals 

maintain complex systems of multiple types of antioxidants, such as glutathione, vitamin C, 

vitamin A, and vitamin E as well as enzymes such as catalase, superoxide dismutase and various 

peroxidases. Insufficient levels of antioxidants, or inhibition of the antioxidant enzymes, cause 

oxidative stress and may damage or kill cells

Laboratory and animal research has shown that exogenous antioxidants can help prevent the free 

radical damage associated with the development of cancer.

All antioxidants are either exogenous, like those found in vitamins and foods, or endogenous, 

produced by your body. Endogenous antioxidants are more powerful free radical fighters than 

those you can get from your diet.

There are various types of Antioxidants in nature like Vitamin C, Ginseng, Green Tea, 

Enzogenol. I will talk about Enzogenol in my next post