食用油有植物油和动物油之分。植物油易消化,大部分为不饱合脂肪酸,也称为必需脂肪酸,其在人体内不能合成,只能从食物中摄取。它不仅可以降低胆固醇,防止动脉硬化,而且与神经系统发育、皮肤的健康也有密切关系,还含有脂溶性维生素A、D、E。缺乏上述营养时,皮肤会粗糙、脱屑,头发干脆容易脱落,婴儿则容易患湿疹。动物油虽含饱和脂肪酸较多,但在胃内停留时 Edible oil vegetable oil and animal oil points. Vegetable oil digestible, most of the unsaturated fatty acids, also known as essential fatty acids, which can not be synthesized in the human body, only from food intake. It can not only lower cholesterol, prevent atherosclerosis, but also with the nervous system development, the health of the skin is also closely related, but also contains fat-soluble vitamins A, D, E. Lack of the above nutrients, the skin will be rough, scaling, the hair simply off easily, the baby is susceptible to eczema. Although animal oils contain more saturated fatty acids, but stay in the stomach