Lipoprotein Response to Diets High in Soy or Animal Protein With and Without Isoflavones in Moderately Hypercholesterolemic Subjects

Autor: Ernst J. Schaefer, Lynne M. Ausman, Alice H. Lichtenstein, Helen Rasmussen, Susan M Jalbert, Herman Adlercreutz, Barry R. Goldin
Rok vydání: 2002
Předmět:
Zdroj: Arteriosclerosis, Thrombosis, and Vascular Biology. 22:1852-1858
ISSN: 1524-4636
1079-5642
DOI: 10.1161/01.atv.0000033513.18431.a1
Popis: Objective— The objective of this study was to assess the independent effect of soy relative to common sources of animal protein and soy-derived isoflavones on blood lipids. Methods and Results— Forty-two subjects with LDL cholesterol levels ≥3.36 mmol/L were fed each of four diets in randomized order for 6 weeks per phase. Diets contained a minimum of 25 g animal protein or isolated soy protein/4.2 MJ, with each containing trace amounts or 50 mg of isoflavones/4.2 MJ. Soy protein had a modest effect on total, LDL and HDL cholesterol, and triglyceride concentrations (−2%, P =0.017; −2%, P =0.042; +3%; P =0.034, −11%, P P =0.001; −5%, P =0.003; −15%, P Conclusions— Although potentially helpful when used to displace products containing animal fat from the diet, the regular intake of relatively high levels of soy protein (>50 g/day) had only a modest effect on blood cholesterol levels and only in subjects with elevated LDL cholesterol levels (≥4.14 mmol/L). Soy-derived isoflavones had no significant effect.
Databáze: OpenAIRE