Top 8 in Top 10 deep-sea fish that pregnant women should eat.
Sardines are mainly used for food, but they can also be made into animal feed. Uses of sardine oil include making paints, pigments and oil paper, as well as margarine in Europe. It is also an important marine economic fish in the world. DHA, which is rich in sardines, can improve intelligence and memory, so sardines are also known as "smart foods".