In a new study, male participants did not seem to benefit from the omega-3 fatty acids found in many types of fish and long believed to lessen the risk of developing heart disease
A new study casts doubt on the conventional wisdom of eating fish to help prevent heart disease. Those omega-3 fatty acids so prevalent in many types of fish may not lessen the risk of developing heart disease after all, at least for men.
Researchers in Denmark tracked the dietary, exercise, and lifestyle habits of 3,277 men and women who were free of heart disease at the beginning of the study. Besides looking at the effect of omega-3 fatty acids, the researchers studied the effects of two other fatty acids -- linoleic acid and alpha-linoleic acid -- on the risk of heart disease.
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Over a period of 23 years, 471 of the study participants developed ischemic heart disease, the type caused by the build-up of plaques in the coronary arteries. The women who reported consuming the most omega-3 fatty acids seemed to benefit from the nutrient with a 38 percent lower risk of heart disease than women who consumed much less.