Beta-carotene

Long-Term Beta Carotene Keeps Mind Sharp

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The article presents a study about the effects of a long-term use of beta carotene in the human body. Study shows that long-term supplementation of beta carotene helps prevent mental decline, suc...

Years of Beta-Carotene Pills May Benefit Your Aging Brain

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The article reports on a study that suggests that beta-carotene may help keep the brain sharp only if taken as a supplement for many years. Researchers reported that men who took supplements of b...

Beta-Carotene and the Incidence of Lung Cancer in Finnish Male Smokers: A Critique

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Reference: The Alpha-tocopherol, Beta-Carotene Cancer Prevention Study Group: The effect of vitamin E and beta-carotene on the incidence of lung cancer and other cancers in male smokers. NEJM 330: 1029-1034,1994.

The Beta-Carotene Controversy in Perspective

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Presently, beta-carotene is in the news worldwide as a result of recently published results of three intervention trials in cancer prevention in high-risk groups. The stow being reported is incomplete and may result in inappropriate conclusions. The questions that need to be asked are:

1. What is the evidence that beta-carotene helps to reduce cancer and heart disease risk?
2. Was the design of the studies sufficient to answer the question?
3. What is the most responsible recommendation to make in light of these studies?

The beta carotene fad: Research gone awry

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Will beta carotene go the way of oat bran? Two studies made headlines last month because one found no benefit to daily beta carotene supplements and the other had to be stopped because of the higher death rate among the supplement takers. It's absurd, of course, to hone in on a single nutrient as though it were a magic bullet that would prevent cancer and heart disease. After all, beta carotene is converted to vitamin A by the body and just one of many nutrients found in certain fruits and vegetables.

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