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Page last updated at 14:27 GMT, Wednesday, 16 April 2008 15:27 UK


Vitamins 'may shorten your life'

Could they be doing more harm than good?

Research has suggested certain vitamin supplements do not extend life and could even lead to a premature death.

A review of 67 studies found "no convincing evidence" that antioxidant supplements cut the risk of dying.

Scientists at Copenhagen University said vitamins A and E could interfere with the body's natural defences.

"Even more, beta-carotene, vitamin A, and vitamin E seem to increase mortality," according to the review by the respected Cochrane Collaboration.

The research involved selecting various studies from 817 on beta-carotene, vitamin A, vitamin C, vitamin E, and selenium which the team felt were the most likely to fairly reflect the impact of the supplements on reducing mortality.

It has been thought that these supplements may be able to prevent damage to the body's tissues called "oxidative stress" by eliminating the molecules called "free radicals" which are said to cause it.

This damage has been implicated in several major diseases including cancer and heart disease.

'Just eat well'

The trials involved 233,000 people who were either sick or were healthy and taking supplements for disease prevention.


VITAPOWER