The world's most widely consumed type of fish is the herring. This small, oily fish is abundant in temperate waters and is particularly popular in European cuisines. Herring can be found in various culinary forms, including pickled, smoked, or fried, making it versatile and widely enjoyed in different cultures. Its rich omega-3 fatty acid content adds to its health benefits, contributing to cardiovascular health and overall well-being. Besides herring, species like tuna and sardines also rank high in consumption but herring's affordability and accessibility solidify its status as the world's most widely consumed fish.