Eat lots of oranges and green vegetables such as carrots, sweet potatoes and peas, reduce the risk of disease and prolong life.
This time, beta-carotene is not the plant, but his cousin, the alpha-carotene. Both are members of the carotenoid family of antioxidants, which scientists attribute to them the capacity to promote health to counteract the DNA damage associated with oxygen.
The consumption of fruits and vegetables reduces the risk of developing diseases like cancer and heart disease, said Li Chaoyang, the Centers for Disease Control and Prevention U.S..
But substance is not known what induces these effects and by what mechanism.
To better understand the merits of the forgotten alpha-carotene, Li's team analyzed data from more than 15,000 participants of the third edition of a national health survey (Third National Health and Nutrition Examination Survey Follow-up Study). All patients had blood samples drawn at baseline, they had provided other medical and lifestyle.
At 14 years of the study, nearly 4,000 participants had died. And participants with more alpha-carotene in blood at baseline, had a lower risk of having an illness or death.
For example, unlike participants with traces of alpha-carotene in the blood, those with the highest levels were up to 39 percent lower risk of dying, published in the Archives of Internal Medicine.
Yet the authors warn that the relationship does not prove that all the merit is of alpha-carotene.
"would be at least partially responsible for risk reduction. We could not identify the possible influence of other antioxidants or components of vegetables and fruits in reducing the risk of dying," said Li.
The alpha-carotene, "has a lot of overlapping chemical properties with beta-carotene and received the same mechanisms of action, "said Howard Sesso, School of Public Health at Harvard, in Boston, who reviewed the results to Reuters Health.
" In fact, it is difficult to disaggregate they tend to move together, "said the expert. Carrots are the key source of both.
Source: http://www.nlm.nih. gov /
Group 17
0 comments:
Post a Comment