Effect of palmitoleic acid on plasma glucose concentrations in KK-Ay mice. Animals were orally administered vehicle (control), 300 mg/kg of palmitic acid, or 300 mg/kg palmitoleic acid on a daily basis for 4 weeks. Values are means ± SE, n = 10. *p < 0.05 compared with the control group. C16:0, palmitic acid; C16:1, palmitoleic acid.