Use of dietary linoleic acid for secondary prevention of coronary heart disease and death: evaluation of recovered data from the Sydney Diet Heart Study and updated meta-analysisTo sum it up: The advise of the past decades for a "heart healthy" not only has no health benefits, it actually creates the problem it perpetuates to fight.
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Advice to substitute polyunsaturated fats for saturated fats is a key component of worldwide dietary guidelines for coronary heart disease risk reduction.
However, clinical benefits of the most abundant polyunsaturated fatty acid, omega 6 linoleic acid, have not been established.
In this cohort, substituting dietary linoleic acid in place of saturated fats increased the rates of death from all causes, coronary heart disease, and cardiovascular disease.
An updated meta-analysis of linoleic acid intervention trials showed no evidence of cardiovascular benefit.
These findings could have important implications for worldwide dietary advice to substitute omega 6 linoleic acid, or polyunsaturated fats in general, for saturated fats.
Don't eat vegetable oils, because vegetable oils cause disease.
Eat saturated fat, because saturated fat does not cause disease.
I know this will make most doctors unhappy, but hey: go fuck yourselves. Handing out murderous advise for decades? If people find out, there'll be a shortage of pitch-forks, I hope – one can dream, right?
(via)
[Update] Stan the Heretic an his take on the matter:
…[Update] Chris Kresser on the same topic.
This high multiple factor seems to be confirm by the data from Table 5 indicating that for every 5% PUFA increase (in absolute energy%) the All cause mortality, the Cardiovascular disease mortality and the Coronary heart disease mortality increased by 31%, 35% and 26% respectively (relative risk factor).
This implies a proportionality factor of about 5-7. That is, for every 1% added Poly-Unsaturated Fatty Acids ( PUFA) in absolute calories % of the total, cardiovascular mortality INCREASED by 5 to 7%. This is big news!
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