Good sources of dietary protein containing adequate levels of L-cysteine or L-cystine dramatically lowers cholesterol in rats fed high cholesterol diets. LDL and triglycerides are also dramatically diminished while HDL increased. Only minor dietary changes (0.3%) in this amino acid are effective. In keeping with concerns about “soylin' “ our food, soy protein caused considerably lower HDL values than other protein sources. This corroborate concerns about the extensive processing of soy protein isolates. HMG-CoA reductase was shutdown in the test tube under conditions favoring vitalethine's monooxygenase receptor thereby implicating same in this mechanism:
http://www.vitaletherapeutics.org/vtlhmgmo.htm