title: Why do polyunsaturated fatty acids lower serum cholesterol?
mesh_terms: D000818:Animals; D002784:Cholesterol / Q000097:blood*; D005231:Fatty Acids, Unsaturated / Q000494:pharmacology*; D007657:Ketone Bodies / Q000096:biosynthesis; D008099:Liver / Q000378:metabolism; D051381:Rats
chemical_list: D005231:Fatty Acids, Unsaturated; D007657:Ketone Bodies; D002784:Cholesterol