Moderate consumption of eel in our life can replenish the body with needed protein, fat, calcium and other nutritional values. Eel is a fish food, the body is slender and snake-shaped, mostly yellow-brown, yellowish or orange-yellow. Each 100 grams of eel contains 89 calories, of which 18.0 grams of protein, 1.4 grams of fat, 1.2 grams of carbohydrates, 126 milligrams of cholesterol, 70 milligrams of sodium, 50 micrograms of vitamin A, vitamin E 1.34 milligrams, 3.7 milligrams of niacin, 263 milligrams of potassium, 42 milligrams of calcium, 34.6 micrograms of selenium. It can be seen that eel is very nutritious, of which protein is animal quality animal protein, low in fat and carbohydrates, and rich in potassium, calcium, selenium and other minerals. People in the selection of eel, it is best to choose the color of gray and yellow, soft to the touch of the eel. If the eel smells foul, it is not recommended to buy it. Since eels contain some parasites, they should not be eaten raw and need to be heated sufficiently to avoid parasitic infections. Those who are allergic to eel should not eat eel.