Dietary Protein and Serum Cholesterol in Rats

Abstract

Increasing protein content of diets of groups of rats on a normally hypercholesterolemic regimen (cholesterol plus cholic acid) caused a progressive drop in serum cholesterol values when either casein or Drackett protein was used. All diets except 1 contained added choline chloride. Animals on the choline-free diet had lower serum cholesterol levels and higher liver cholesterol levels than a comparable choline-fed group.