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  • Title: Divergent lipoprotein responses to fish oils with various ratios of eicosapentaenoic acid and docosahexaenoic acid.
    Author: Childs MT, King IB, Knopp RH.
    Journal: Am J Clin Nutr; 1990 Oct; 52(4):632-9. PubMed ID: 2144941.
    Abstract:
    To determine if the ratio of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids in fish oil had an effect on plasma lipid responses, we randomly fed eight normolipidemic men three 36%-fat diets containing primarily butter, EPA-rich pollock oil, or DHA-rich tuna or salmon-blend oils. Plasma EPA and DHA reflected the amounts in the diets. Compared with values for the butter diet, very-low-density lipoprotein (VLDL) triglycerides decreased equally (71-78%) with all diets; low-density lipoprotein (LDL) cholesterol (LDL-C) and apolipoprotein B decreased 26% and 13%, respectively, on the tuna and salmon-blend oil but did not change (-1%) and increased 19% with the pollock diet; high-density lipoprotein cholesterol (HDL-C) and lipoproteins A-I and A-II decreased with all diets but more with the pollock diet than with the tuna and salmon diets. The 23-31% decrease in total cholesterol on the tuna and salmon diets resulted mostly from decreased LDL-C whereas the 16% decrease on pollock oil resulted mostly from a decrease in HDL-C.
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