rochelle,

I can find nothing in the linked study that leads to your statement - "By changing to a whole food plant based diet with no oils you are not injuring the endothelium lining any longer creating more plaque."

I may have missed it, but the binary nature of your statement just doesn't align ... sure, the folks in the study who lost 20 pounds reduced fat consumption to 10%-fat vegetarian (does this include eggs and milk products?). No mention of "injuring the endothelium lining."

Here is a quote from the linked document -

"Program Intervention
Experimental group patients were prescribed an intensive lifestyle program that included a 10%-fat vegetarian diet, moderate aerobic exercise, stress management training, smoking cessation, and group psychosocial support previously described in detail.3,7-10 Patients were encouraged to avoid simple sugars and to emphasize the intake of complex carbohydrates and other whole foods. Only 1 patient in the experimental group was actively smoking at baseline, and she quit at entry. Control group patients were asked to follow the advice of their personal physicians regarding lifestyle changes."