This clinical research project is designed as a pilot, randomized, double-blinded, crossover study that will investigate the effect of concentrated oil enriched with palmitoleate on lipoprotein metabolism and satiety. Subjects will either receive control olive oil enriched in oleic acid, a longer-chain monounsaturated fatty acid (cis-C18:1 n-9), or a concentrate oil supplement produced from pollock fish (rich in palmitoleate) for approximately 8-10 weeks, with a wash out period of 8-10 weeks between the two arms of the study. The study consists of 4 outpatient visits when laboratory or research samples and CAVI tests will be performed. A 7-day food diary, pill count, and red cell membrane fatty acid levels will be monitored to assess compliance. The effect of the supplement on satiety will be assessed at each visit.