Sorry Don -- I missed your previous answer to this.  I also sent Dr.
Cordain an e-mail asking his views on this and he was kind enough to
respond.  Among other things, he too mentioned that a reduction in one's
normal caloric intake would result in marked insulin sensitivity and blood
lipid parameters.  On the other hand, although Ornish's plan lowered LDL,
had very little effect on HDL or triglycerides.  If eating carbs increases
triglycerides (which is precisely why Ornish's high carb plan does not
lower triglycerides), then is there any benefit to lower insulin levels
and/or marked insulin sensitivity when triglycerides remain high?