Folic acid, homocysteine, and cardiovascular disease: judging causality in the face of inconclusive trial evidence.

Wald, David S; Wald, Nicholas J; Morris, Joan K; Law, Malcolm · BMJ · 2006

review · Level V

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Abstract

Increasing intake of folic acid would be a relatively cheap and simple way of reducing heart disease, if it works. Can we draw a definitive conclusion from the current evidence?

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