Vitamin therapy is still effective in reducing stroke risk
Vitamin therapy plays an important role in reducing of stroke.
But Dr. David Spence of the University of Western Ontario and Dr. Meir Stampfer of the Harvard School of Public Health have disagree with this.
Vitamin B therapy was once widely used in order to reduce homocysteine levels. But a lot of this amino acid in the bloodstream increased risk of stroke and heart attack.
Several randomised studies found lowering homocysteine levels with vitamin B therapy did not cause a cardiovascular benefit.
Dr. Spence, a scientist with the Robarts Research Institute at Western's Schulich School of Medicine and Dentistry, conducted a study in which Vitamin B therapy significantly increased cardiovascular risk in patients with diabetic nephropathy.
He said:
"It is now clear that the large studies showing no benefit of vitamin therapy obscured the benefit of vitamin therapy, because they lumped together people with renal failure and those with good renal function. The vitamins are harmful in renal failure, but very effective in patients with good renal function, they balance each other."
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