People around the world enjoy seafood and fish. In addition to their appealing flavors, they are also rich in nutrients.

Research results show that the calcium content of the above six kinds of wild small fish is five times higher than that of farmed salmon. In addition, the iodine content is four times higher, and the iron, Omega-3, and vitamins B12 and A contents are more than 1.5 times higher. As for vitamin D, the amount in wild small fish is similar to that of farmed salmon. However, farmed salmon contain more selenium and zinc than wild small fish, which is possibly a result of other aquafeeds.