Beauchesne - Rondeau E, Gascon A, Bergeron J, Jacques H. Plasma lipids and lipoproteins in hypercholesterolemic men fed a lipid - lowering diet containing lean beef, lean fish, or poultry. (completehumanperformance.com)
Wolfe and Giovannetti (121) have shown that the isocaloric substitution of protein (23 % of energy) for carbohydrate in moderately hypercholesterolemic subjects resulted in significant decreases in total, LDL, and VLDL cholesterol and triacylglycerols and an increase in HDL cholesterol. (academic.oup.com)
Short term effects of substituting protein for carbohydrate in the diets of moderately hypercholesterolemic human subjects (academic.oup.com)