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Omega-3 no protection against heart attack or strokes, say scientists

sympliromata o3 medThe widespread belief that taking omega-3 capsules will help protect you from a heart attack, stroke or early death is wrong, according to a large and comprehensive review of the evidence.

Thousands of people take omega-3 supplements regularly and for years. The belief that it protects the heart has spread – and is promoted in the marketing of the supplements – because the results from early trials suggested the capsules had cardiovascular benefits.

Α major review by the respected Cochrane collaboration of all the well-conducted trials carried out internationally to test the effect of omega-3, involving more than 112,000 people, says there is no evidence that the supplements do any good. Fish oil supplements made no difference to the risk of death or heart attacks or strokes, the Cochrane researchers found. Eating more ALA from supplemented margarine or walnuts did convey a small benefit, but the reduction in cardiovascular events was very small.

Tim Chico, professor of cardiovascular medicine at Sheffield University, said it was unlikely any one element of the diet could alone prevent heart disease. “Previous experience has shown that although some types of diet are linked to lower risk of heart disease, when we try to identify the beneficial element of the diet and give it as a supplement it generally has little or no benefit,” he said. It happened with vitamins and now the Cochrane research had shown the same thing with omega-3.

“Such supplements come with a significant cost,” he said, “so to anyone buying them in the hope that they reduce the risk of heart disease, I’d advise them to spend their money on vegetables instead.”

You can see a full article at the British Guardian, titled : "Omega-3 no protection against heart attack or strokes, say scientists"




Ο Tim Chico, καθηγητής της καρδιοαγγειακής ιατρικής στο Πανεπιστήμιο του Sheffield, δήλωσε ότι είναι απίθανο ότι οποιοδήποτε στοιχείο της διατροφής θα μπορούσε από μόνο του να αποτρέψει τις καρδιακές παθήσεις.   «Η εμπειρία μας έχει δείξει ότι αν και ορισμένα είδη διατροφής συνδέονται με χαμηλότερο κίνδυνο καρδιακής νόσου, όταν προσπαθούμε να εντοπίσουμε το ευεργετικό στοιχείο της δίαιτας και να το προσφέρουμε ως συμπλήρωμα, γενικά δεν έχει καθόλου όφελος», ανέφερε. Αυτό συνέβη με  αρκετές βιταμίνες και τώρα έρχεται να επιβεβαιωθεί και με τα ω-3.   «Αυτά τα συμπληρώματα έχουν σημαντικό κόστος» είπε. «Αν κάποιος τα αγοράζει με την ελπίδα ότι μειώνουν τον κίνδυνο καρδιακών παθήσεων, θα τον συμβούλευα να ξοδέψει τα χρήματά του για τα λαχανικά». Πηγή: www.lifo.gr
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