Monday, August 2, 2010

Food-antioxidants prevent cancer

The food-antioxidants prevent cancer?

The antioxidant foods they help in preventing cancer and heart disease?

Start with a definition: An anti-oxidant is an agent that slows the breakdown of food and certain organic compounds or materials due to the effects of oxidation. Antioxidants can neutralize the harmful effects of free radical molecules that can potentially have toxic effects. Some foods contain anti-oxidants. Some food additives contain anti-oxidants and thus have anti-oxidant.

Statistics show that people who eat fruits and vegetables rich in polyphenols and anthocyanins, lower their risk of cancer, heart disease and some neurological diseases. However, despite the clear role of oxidation in cardiovascular disease, controlled studies using antioxidant vitamins have observed no reduction in the risk of developing heart disease.


This suggests that other substances in fruits and vegetables may explain the better cardiovascular health of people who consume more. The researchers found that people taking Vitamin E supplements reduce the risk of developing heart disease. But none of these studies showed a statistically significant effect of Vitamin E on overall number of deaths or deaths from heart disease.

He is not certain that the doses used in these tests or doses found in most dietary supplements are capable of producing a significant decrease in oxidative stress. A recent study "en dash Supplementation Vitamins and Minerals Antioxidants (SU.VI.MAX) evaluated the effect of the addition of a food supplement at doses comparable to that obtained with diet healthy.

In this study, 12,500 French men and women took low-dose antioxidants or placebo tablets for an average of seven and a half. The researchers found that there was no statistically significant effect of antioxidants on cancer, heart disease and overall survival. However, an analysis of sub-group showed a 31% reduction in cancer risk among men, but no significant reduction among women.

Our recommendation?

This study shows that it would be unwise to consider dietary antioxidants and more generally food supplements as an effective safeguard to prevent cancer. These products are rarely prescribed by physicians, and medical shows traditionally a reluctance on the latter. It can provide additional protection only. For us, this study shows clearly that it is much better to encourage a healthy diet rich in fruits and vegetables.