Okay:<p>1. I hope everyone realises that reading one abstract online does not constitute medical advice, or even the true state of scientific knowledge on the field.<p>2. If regardless you <i>do</i> intend to base your life decisions based on something you read on-line, I direct you to the publications of the Cochrane Collaboration - the gold standard in meta-analyses and as close as you can get to the final word on the current state of the publication field.<p>In this particular case, the relevant Cochrane reports seem [I am not a doctor nor do I play one on HN] to say two things:<p>1. Dietary changes do affect your cardiovascular risk<p>2. But they have to be maintained for long periods (&#62; 2 years) and the vast majority of people are not compliant so in practice they are ineffective.<p><a href="http://www.cochrane.org/reviews/en/ab002137.html" rel="nofollow">http://www.cochrane.org/reviews/en/ab002137.html</a><p><a href="http://www.cochrane.org/reviews/en/ab002128.html" rel="nofollow">http://www.cochrane.org/reviews/en/ab002128.html</a><p>etc.