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What is the composition of "ink" of cuttlefish, and can it really be eaten?
The ink of cuttlefish is edible. This ink is actually a kind of protein containing melanin, containing 16 kinds of amino acids, lipids, calcium, iron and many other nutrients. It is completely edible. Besides being used as a shelter to help cuttlefish escape, the ink also has the effects of improving human immunity, resisting cancer, stopping bleeding and so on. After processing, it can also be used as a valuable medicinal material.