Sardines are rich in amazing nutritional value. A can of sardines is like a nutritious power station, rich in phospholipids, protein and calcium. Saltwater fish have a special ingredient that protects cardiovascular health - phospholipids. According to the content of the website of the American Cardiovascular Society, this special fatty acid can reduce the production of triglycerides and has the amazing effect of gradually lowering blood pressure and slowing down the rate of atherosclerosis. Pregnant women should eat more fish, such as sardines, during pregnancy because sardines are rich in phospholipids. At the same time, the phospholipids in sardines have a promoting effect on the brain development of the fetus. Besides phospholipids, sardines also contain a lot of calcium, especially in the fish bones. The bones of canned sardines are fluffy and safe to eat.

Norwegian folklore has it that sardines caught by fishermen usually have a hard time returning to port alive. Once in a while, a boat was found to have returned with all its sardines alive. The secret is that there is a catfish inside the original, its presence makes the sardines panic, fleeing around, but the result is to save their lives.