Some people will say that these inks also contain some paralytic toxins, but in fact, these trace toxins will lose their activity during heating. So octopus can eat its ink, but it is best to cook it before eating. If it is eaten raw, it is still risky. Eating raw is also afraid of parasites in octopus, which is also unsanitary.
Octopus ink is actually rich in nutrition. In addition to the above-mentioned basic substances, there are as many as 16 kinds of amino acids, as well as potassium, calcium, iron and potassium. The content of these trace elements is also high. So octopus ink is completely edible.
However, octopus ink will have a strange smell if eaten directly, because octopus ink is generally used as a seasoning. For example, when making ink dumplings in China, the ink of octopus will be used as seasoning and flour, so when wrapping jiaozi, the dumpling skin will taste like ink, which will look very distinctive, but it won't be strange to eat.
Moreover, some western countries also like to use cuttlefish juice when making spaghetti, because the spaghetti made with cuttlefish juice is black, which is different from ordinary spaghetti and will bring great impact to people's vision. Moreover, octopus ink pasta is often more expensive and has higher nutritional value, so many people are willing to try it.