Proface

Antioxidants are touted as a shield for the body against pollutants and free radicals does have many benefits and keep the body healthy.

But, if you want to meet the body's need for antioxidants, consume vegetables and fruits. This is because our bodies need antioxidants actually only in small amounts, whereas the supplement usually very high concentration.

Antioxidant supplements were first introduced by a group of scientists in 1981 to fight free radicals. Various epidemiological studies showed that people who often eat fruits and vegetables lower the risk of colon cancer, heart disease, and other conditions.

The experts then tried to find the content of "active" and packed in a pill. The active substance was calculated beta-carotene that gives the orange color in carrots, because it is an antioxidant. However, its use is not as simple as that.

Constant process occurs between the electron acceptor (radical) and donor (antioxidant) to be balanced with good and very complicated biochemistry at how cells can survive and grow. When there are more acceptor or donor, the system will lose balance and crash. So Antioxidants are not necessarily required.

Then in the 1980s conducted research in Seattle involving 18,000 men and women were randomly assigned to receive tablets contain beta-carotene or tablets that do not have active ingredients (placebo).

Experts plan to keep abreast of the respondents were over 10 years and thought the group that received beta-carotene is a lower risk of lung cancer. But, what happens, and research had to be stopped early because the beta-carotene group have increased lung cancer. The same was found in studies in Finland.

The amount of beta-carotene in the tablet is much higher than that present in the body naturally. Experts had thought that if the levels of just a little better, especially if a lot. But, in fact, they are wrong.

In 2007 an analysis of 68 randomized trials of antioxidant supplements that showed an increased risk of death 5 percent in the group taking supplements.

Recent studies continue to be done. One of them involving 15,000 male physicians who were randomly assigned to 4 types of pills in 1997. One contained a placebo and the other is a vitamin E, vitamin C, or a multivitamin that contains several antioxidants like vitamin E in low doses.

In 2011, about 2,700 of the 15,000 patients diagnosed with cancer. Pill contains vitamin C and E seem to have no effect on cancer risk, but the administration of multivitamins lower the risk of death up to 8 percent.

However, natural sources remain the best. However, if you want to take supplements, take a multivitamin in low doses.

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