ISLAMABAD -
There is no convincing evidence that taking high doses of selenium – a popular dietary supplement - can prevent cancer, according to a new review.
Selenium is a mineral that is essential for humans, and is also present in soil and rocks. While daily selenium recommendations from the United States and World Health Organization vary between 30 and 55 micrograms per day for adults, the authors note, companies that sell the supplements claim that higher doses have a range of
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