Squid is a valuable food product for seafood lovers around the world.
These mollusks, belonging to the class Cephalopoda, are rich in high-quality protein that is easily absorbed by the body, as well as containing a range of vitamins and minerals, including vitamin B12, potassium, phosphorus, and selenium.
Nutritional Value
In 100 grams of cooked squid, there are approximately 18 grams of protein, about 2 grams of carbohydrates, and less than 1 gram of fat, making it an ideal product for a ketogenic diet.
The glycemic index of squid is very low, which makes them a suitable food for a keto diet.
The caloric content of squid is also relatively low – about 85 calories per 100 grams, allowing them to be included in the diet without fear of disrupting the energy balance.
Interesting Facts About Squid
Squids have three hearts. Two of them pump blood to the gills, while the third pumps it to the rest of the organs. This helps them efficiently utilize oxygen, which is especially important for their active lifestyle.
Squid blood is blue. This is due to the presence of hemocyanin, which contains copper instead of iron, as in human blood. Hemocyanin is more effective at binding oxygen in cold water.
Some squids can change the color and texture of their skin. They have specialized cells called chromatophores that allow them to camouflage or communicate with other squids.
Squids have excellent memory. Studies show that they can remember locations and even solve simple problems, making them some of the smartest invertebrates.
There are over 300 species of squids. They inhabit various marine environments, from shallow waters to deep ocean trenches, and vary in size, shape, and behavior.
The largest squid in the world is the giant squid. It can reach lengths of up to 13 meters and weigh more than 200 kilograms.
Squids can swim backward. They use their mantle muscles to quickly expel water, allowing them to swiftly turn around and move in the opposite direction.
Squids have a unique hunting method. They can shoot ink at their enemies, creating a cloud that helps them escape or ambush prey.
Some species of squids can grow to human size. For example, the giant squid (Architeuthis dux) can reach impressive sizes, making it one of the largest invertebrates on the planet.
Squids are an important part of marine ecosystems. They serve as food for many predators, including whales, sharks, and birds, playing a key role in the food chain.
Squids are used in cooking around the world. Their meat is considered a delicacy and is used in various dishes, from sushi to paella.
Some squids can produce light. The ability for bioluminescence helps them attract prey or deter predators in the dark depths of the ocean.
Squids can live from one to several years. Lifespan varies by species, but most squids have a relatively short life, reproducing only once.
The skeleton of squids is made of cartilage. This makes them more flexible and allows them to maneuver easily in the water.
Squids can reach speeds of up to 60 km/h. This makes them some of the fastest animals in the ocean, helping them evade predators.
Squids have a complex nervous system. Their brain is larger relative to their body, and they have nerve nodes throughout their body, allowing them to respond quickly to threats.
Some squids can be poisonous. Some species, such as the blue-ringed octopus, have a potent venom that can be fatal to humans.
Lipid Profile
Squids contain various types of fats, including:
- Saturated fats: about 0.5-1% of total fat
- Monounsaturated fats: about 1-2% of total fat
- Polyunsaturated Omega-3 fats (ALA, DHA, EPA): about 1-2% of total fat, where DHA and EPA are the main representatives
- Polyunsaturated Omega-6 fats (LA, AA): less than 0.5% of total fat
Thus, squids are a good source of healthy fats, especially Omega-3 fatty acids.
