Seafood contains proteins and amino acids, the most suitable for human consumption- 93-98% of which are digested, that isn’t exactly about any other animal proteins. Magnesium, potassium, phosphorus, fluorine- improve memory, stabilize nervous system, strengthen osseous tissue and blood circulation.  Nutritive value of seafood products is higher than meat. And it is far not the whole list of seafood advantages.
Squids, shrimps and octopuses- are a depository of microelements and minerals. There is daily amount of iodine, zinc, selenium, iron, copper and magnesium in a small portion of «seafood-cocktail». Seafood products, having minimum of calories, are rich in polyunsaturated fatty acids, valuable for heart and vessels.