脂肪由甘油和脂肪酸组成,脂肪酸又分为饱和脂肪酸和不饱和脂肪酸。饱和脂肪酸能促进胆固醇吸收,易导致动脉硬化、冠心病等。不饱和脂肪酸能抑制胆固醇吸收,加速胆固醇分解、排泄,有利于防治心血管疾病。一般来说,饱和脂肪酸在常温下多呈固体状态,如猪油、牛油;而不饱和脂肪酸多 Fat is composed of glycerin and fatty acids, fatty acids are divided into saturated fatty acids and unsaturated fatty acids. Saturated fatty acids can promote cholesterol absorption, easily lead to atherosclerosis, coronary heart disease. Unsaturated fatty acids can inhibit cholesterol absorption, accelerate cholesterol decomposition, excretion, is conducive to the prevention and treatment of cardiovascular disease. In general, saturated fatty acids at room temperature mostly solid state, such as lard, butter; and unsaturated fatty acids and more