Not only is fish nutritious, but it is also easy to digest, making it a favorite for everyone. However, do you know which nutrients are found in the different parts of a fish?
Fish meat is rich in high-quality protein, easily digested and absorbed, low in fat, and also contains inorganic salts such as calcium, phosphorus, potassium, iodine, zinc, and selenium, as well as vitamins A, D, and B-complex vitamins. Fish meat is divided into dark and white flesh. Dark meat contains more lipids, glycogen, vitamins, and enzymes, and has a stronger fishy taste, such as tuna and sardines; white meat has a milder fishy taste, such as large yellow croaker and flounder.
Fish eyes have slightly higher levels of Vitamin B1 and DHA, but due to their small size, their nutritional value is not significant.
Fish scales contain choline, which can enhance memory. They also contain various unsaturated fatty acids, which have a certain effect in preventing and treating arteriosclerosis, hypertension, and heart disease, and can be made into fish scale jelly. In addition, the scales of taihu fish and Spanish mackerel contain certain lipids and umami components, so they can be steamed directly without removing the scales during cooking. The scales of hairtail contain 6-thioguanine, which has anti-cancer properties, so there is no need to scrape them off before eating.
Fish tails and bones The nutrition of the fish tail is similar to that of the main body of fish. Fish bones do have a calcium-supplementing effect, but people generally eat very little of them. The bones of sharks can be made into bone meal.
Fish lips are mainly made from the dried skin and connective tissue of the upper lips of sturgeon, sharks, and rays. The main component is collagen. Although it is considered one of the "Eight Treasures of the Sea," it actually has little nutritional value.
Fish maw was historically known as "ginseng of the ocean," renowned alongside bird's nest and shark fin. Fish maw contains biopolymeric collagen protein, which can improve tissue nutrition, promote growth and development, and delay skin aging. It is an ideal high-protein, low-fat food. The swim bladders of saltwater fish are thicker and are usually made into dried products, known as fish maw. Dishes made from fish maw have a smooth, delicate, and rich texture.
Fish brains are rich in DHA, a polyunsaturated fatty acid commonly known as "brain gold," as well as phospholipids, which are beneficial for infant brain development and may also help in the辅助 treatment of Alzheimer's disease. However, fish brains have a high cholesterol content, so their consumption should be controlled.