棕榈油酸是ω-7单不饱和脂肪酸，是人脂肪组织甘油三酸酯的常见成分。它主要存在于动物脂肪中，特别是在鱼类和海洋哺乳动物中，也存在于Proteaceae科的植物种子中。与富含油酸的饮食相反，基于棕榈油酸的饮食会像饱和脂肪酸那样增加低密度脂蛋白（LDL）胆固醇和降低高密度脂蛋白（HDL）胆固醇，即使在饮食中摄入胆固醇的情况下也是如此。维持在较低水平。 Palmitoleic acid is an ω-7 monounsaturated fatty acid that is a common constituent of the triglycerides of human adipose tissue. It is found mainly in animal fats, particularly in fish and marine mammals, and is also present in the seeds of plants of the Proteaceae family. In contrast to a diet enriched with oleic acid, palmitoleic acid-based diets raise low-density lipoprotein (LDL) cholesterol and lower high-density lipoprotein (HDL) cholesterol much like that of a saturated fatty acid, even when dietary intake of cholesterol is maintained at a low level.