Unregistered

Clearly rats and people are not the same but this is interesting none the less.

Also one really needs to see the trial as to level ratios of fats etc, but overall suggests balancing the omega three and six, and not relying solely on monosaturates eg olive oil (which itself is a mix but primarily monosaturate and like all natural products has a host of other "neutraceuticals" plant chemicals).

But as usual check it out for your self.

RB


American Journal of Clinical Nutrition, Vol 57, 207-212, Copyright © 1993 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS
Relative effects of dietary saturated, monounsaturated, and polyunsaturated fatty acids on cardiac arrhythmias in rats

PL McLennan
Cardiac Research Unit, Commonwealth Scientific and Industrial Research Organization, Adelaide, Australia.

This study compared monounsaturated oleic acid with n-6 and n-3 polyunsaturated fatty acids (PUFAs) for their ability to modify the vulnerability to cardiac arrhythmias during ischemia or reperfusion in rats. Replacement of saturated animal fat in the diet with oleic acid- rich olive oil did not significantly alter the incidence of ventricular fibrillation or other cardiac arrhythmias. Replacement with either n-6- rich sunflower seed oil or n-3-rich fish oil reduced the incidence and severity of arrhythmias occurring in ischemia. The fish oil significantly reduced reperfusion arrhythmias independently of antecedent ischemic arrhythmias. Fatal ventricular fibrillation was significantly reduced by n-6 (8%; n = 25) and n-3 (0%; n = 24) PUFA but not by monounsaturates (36%; n = 25) compared with saturated fat (42%; n = 24). The results suggest that dietary replacement of saturated fats by n-6 and especially n-3 PUFA but not monounsaturated fatty acids can reduce the likelihood of an ischemic event leading to sudden cardiac death.