In order to keep a slim figure, many young women don't eat any animal fat in their life. However, this is unscientific, and is harmful to their health. 

Moderate intake of fat has great significance to the health of young girls. When girls enter puberty, there are a series of changes in the endocrine system. For example, the subcutaneous fat is increased, which constitutes a woman's unique figure. As a result, girls need more fat at this stage, in order to regulate the endocrine system and form a healthy figure. An important sign of young girls is the rosy and soft skin, in which fat plays an important role. Subcutaneous fat can make the skin smooth but not shrinking, resilient but not loose. Fat can promote the absorption of soluble vitamin, which is very important for the health of the skin. It is no exaggeration to say that the role of fat in the health of skin can not be replaced by any high-end cosmetics.

Fat is also one of the important materials for the growth, development and maturation of women. And it is also an important source for normal menstruation and fertility for the women. Fat plays an important role in the synthesis of sex hormones in the body. Studies confirm that the fat content in women should reach to 17% of the body weight, so as to keep normal menstruation. If women don't take in any animal fat, there will be a lack of bodyfat, which may result in the shortage of estrogen. Therefore, it will cause menstrual disorders, and even affect the development of reproductive organs.

In some sense, a certain amount of fat in the body can enhance the ability to resist the invasion of some diseases. For ordinary adults, the content of fat accounts for about 15-20% of the weight, and the ratio for women should be slightly higher than that. It has been measured that if one starves for one to three days, 85% of the energy of the body needs to be supplemented by the fat accumulated in previous time. So it can be seen that if one has too little fat in the body, once he is sick or injured or can not eat, his body will be significantly thinner, and it will be difficult for him to resist diseases.

In the current psychology of "fear of fat", people should clearly realize that moderate intake of fat every day is a necessary condition for the health of women. In order to keep physical fitness, women need not to reject animal fat, but should turn to more exercise.