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Article

Pork Fat and Chicken Fat Similarly Affect Plasma Lipoprotein Metabolism in Cynomolgus Monkeys Fed Diets with Adequate Levels of Linoleic Acid^{1 ,2}

Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202

The effects on plasma lipoprotein metabolism of replacing pork fat (PF) with chicken fat (CF) (formulated as part of currently recommended prudent diets) was evaluated in 10 male cynomolgus monkeys. Monkeys were rotated through three dietary periods, (each of 10-wk duration), during which total cholesterol (TC), triacylglycerol (TG) and HDL-cholesterol (HDL-C) were measured (7, 8 and 9 wk) and in vivo lipoprotein metabolism evaluated (after 9 wk). Initially, all monkeys were fed a high-fat, high-cholesterol reference diet [38% of energy (en) from fat, 18%en saturated fatty acids (SFA), 10%en monounsaturated fatty acids (MUFA), 10%en polyunsaturated fatty acids (PUFA), 0.045 mg cholesterol/kJ diet]. Subsequently, monkeys were rotated through two test diets (30%en fat, SFA/MUFA/PUFA 1:1:1, 0.004–0.005 mg cholesterol/kJ diet), in which 80% of the fat was either PF or CF, with the remaining 20% derived from high-linoleic safflower oil. There was no significant difference between the two test diets for TG, TC, nonHDL-C, HDL-C or the ratio of TC/HDL-C. Lipoprotein composition, LDL apolipoprotein B pool size, fractional catabolic rate and transport rate were also not significantly different when monkeys consumed the two test diets. These data suggest that when incorporated into diets following current guidelines and containing adequate PUFA (~7–9%en), PF and CF similarly affect plasma lipids.

KEY WORDS: • pork fat • chicken fat • cynomolgus monkeys • LDL • HDL • kinetics

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				S. V. Gupta, N. Yamada, T. V. Fungwe, and P. Khosla Replacing 40% of Dietary Animal Fat with Vegetable Oil Is Associated with Lower HDL Cholesterol and Higher Cholesterol Ester Transfer Protein in Cynomolgus Monkeys Fed Sufficient Linoleic Acid J. Nutr., August 1, 2003; 133(8): 2600 - 2606. [Abstract] [Full Text] [PDF]

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