Travelly Kan - The horse mackerel, as it is a oil-rich fish, is a greasy fish. This fat is rich in omega-3 fatty acids; this helps to reduce the level of cholesterol and triglycerides which at the same time collaborate to reduce the risk of heart illness and blood vessels. The horse mackerel is a good source of proteins with a high biologic value which also contains important quantities of vitamins and minerals. It is a fusiform shaped long fish with pale flanks. The fins and the back can be grey or greenish except the belly, which can have different shades of white or silver. The head is pointed; eyes and mouth are very big relative to the head. It can be longer than 30 cm long, up to 60 cm.