Cod is a kind of fish with low calorie, but it is also rich in nutrients such as protein, vitamins, calcium, magnesium, etc. It has a good protective effect on the cardiovascular system of human body, and can also prevent some diseases such as hypertension and myocardial infarction, so it is more suitable for people of all ages to eat, and it is more effective for you who love beauty to lose weight. Hairtail With the continuous improvement of people's understanding of diet, many girls like to keep healthy. Hairtail is a good health food, which can not only make the skin tender and smooth, but also enhance the surface vitality of the skin and effectively resist skin aging. At the same time, the scales and silver oil layer of hairtail also contain an anticancer component 6- thioguanine, which is beneficial to the adjuvant treatment of leukemia, gastric cancer and lymphoma. Crucian Carp Crucian Carp is a common fish in northern China. Its nutrition is also comprehensive, low-fat prevention, protein, trace elements, vitamins and other nutrients. Eating crucian carp often has a good nourishing and dietetic effect on spleen and stomach weakness, edema, ulcer, tracheitis, asthma and diabetes, and also helps to lower blood pressure and blood lipid, thus prolonging life. Maternal consumption of crucian carp can not only increase nutrition, but also effectively promote lactation. These kinds of fish have a good effect on healthy weight loss, but when choosing different cooking methods, it will also affect the weight loss effect. Some cooking methods such as steaming and stewing can not only ensure the nutrition of fish, but also have a good effect on losing weight.