Diet is the foundation of human health. Therefore, it is a big issue to find out whether a diet containing the necessary nutrition which can help keep the body balanced and healthy, as well as prevent a variety of problems which affect human health.

We all know that oxygen plays an indispensable role in our survival. However, at the same time, oxygen will interact with other elements and then carry out a number of chemical reactions, making these elements "oxidized". However, such "oxidization" will generate a great number of free atom radicals. Free atom radical is a very complex concept. But in brief, it is a chemically unstable atom, which may cause all kinds of harms to human body.

In our daily life, a variety of reasons can stimulate these free atom radicals, such as all kinds of pollution, smoking, fried or grilled foods, as well as the ultraviolet rays of the sun, and so on. A lot of diseases of human beings have something to do with free atom radicals, including cancer, coronary heart disease, premature aging and so on. By destroying healthy cells, free atom radicals will accelerate the aging process of the body and can destroy the DNA in the nucleus, thus leading to cytopathic effect and canceration.

One of the most important roles of vegetables and fruits is to provide the antioxidants to our body. Antioxidants can protect us from the harmful impact of the free atom radicals. Various kinds of nutrients in vegetables and fruits are good antioxidants, such as , vitamin C, Vitamin E and some trace elements like and and so on.

These above components are mostly contained in the following foods:
Vitamin A--Yellow fruits such as oranges; vegetables such as carrots and pumpkin; fish, and so on.
Vitamin C--Fruits (especially citrus fruits); green leafy vegetables such as broccoli, cauliflower and so on; berries such as strawberries, blueberries, raspberries, etc; as well as potatoes and sweet potatoes and so on.
Vitamin E--Nuts, seeds, avocado, vegetable oil, fish oil, and so on.
Selenium--Brazil nuts, tuna, cabbage, and so on.
Zinc--Pumpkin, sunflower, fish, almonds, and so on.

In a word, you can eat more of the above foods in your daily diets, so as to increase the intake of the antioxidants in you body. As a result, you can protect yourself from the harms of free atom articles and make yourself much younger.