New York Times, Haaretz, News and Walla!
https://www.hayadan.org.il/vitamine121104.html
Millions of people take vitamin E supplements every day in hopes of a longer and healthier life. However, according to a new study, consuming the vitamin in high doses may do more harm than good.
The study, conducted at the Johns Hopkins University in Baltimore, shows that people who take high doses of vitamin E may, in some cases, die earlier. "The reasons for this are not clear," says Dr. Edgar Miller, who headed the study. "I think people take vitamin E because they think it will make them live longer, but the research doesn't support that at all," Miller told reporters at a conference of the American Association for heart health.
Miller and his colleagues reanalyzed the results of 19 studies on the relationship between vitamin E and health, conducted between 1993 and 2004. More than 136 people, mostly adults, in North America, Europe and China participated in the studies.
The study shows that people who took 200 international units of vitamin E per day, or more, died at a higher rate during the study, which usually lasted three years, compared to people who did not take supplements at all.
"There is an increase of about 5% in the risk of mortality in 45 years, which is the years of all the studies examined together," says Miller, "It doesn't sound like much, but if you add to the fact that 25% of the US population takes vitamin E, it becomes very significant".
Miller said that two-thirds of people who take a vitamin E supplement, take an amount of 400 international units or more. According to him, "We don't think people should take a vitamin E supplement, they get enough from food." Vitamin E is abundant in nuts, oils, whole grains and green vegetables.
The average person in the US needs between six and 10 international units of vitamin E, Miller said. The Institute of Medicine, which recommends doses of vitamins and minerals, recommends consuming a maximum of 1,500 international units of the vitamin per day. But according to Miller, this is too high a dose.
Miller, who was surprised by the results of his research, said that there are several possible reasons why the vitamin could harm the body. For example, while vitamin E in a low dose prevents oxidation of the cells, in a high dose it may affect the anti-oxidant actions that are naturally present in the body and thus cause damage to it.
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