Article: Remedies to prevent heart disease questioned B vitamins may not help those at risk

Gina Kolata
International Herald Tribune
03-14-2006
A widely promoted B-vitamin regimen for the prevention of heart attacks and strokes has shown no beneficial effects in people at high risk, researchers are reporting in two new studies. The widely accepted hypothesis was that B vitamins folic acid, vitamin B12 and vitamin B6 could protect against homocysteine, an amino acid that some doctors said was as important and dangerous a risk factor for heart disease as cholesterol.Studies of populations had shown that the higher the homocysteine level in the blood, the greater the risk of heart attacks and strokes.And studies of animals had indicated that homocysteine could actually damage the ...

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