Diet for the Elderly: Eating fish can alleviate memory loss

　　According to the British media It was reported on November 22 that according to a new study in Norway, elderly people who eat more fish can slow down the signs of memory decline, and the more they eat, the better the effect. The research report was published in the Journal of the American Society of Nutrition.

　　Researchers found that older adults who ate more fish scored higher than others in tests of memory, visual perception, spatial cognition, attention, sense of direction, and language fluency. Dr. Smith of Oxford University said that older people who eat more fish, regardless of whether male female They performed well on six cognitive tests, and those who ate more fish had better results.

　　Dr. Smith's research team studied 2,031 elderly people aged between 70 and 74 in western Norway. Among the test participants, 1,951 ate 10 grams or more of fish per day, including fresh fish, canned fish, or fish products such as cod liver oil and fish oil. The other 80 people ate less than 10 grams of fish per day.

　　The researchers said they need further research to determine which fish and fish foods, which types of fish, and what cooking methods are helpful for improving memory. Smith says it's important to find out what's in the fish, and studies have found that fat-free and fatty fish are equally effective. Therefore, fish that is good for people may not just be fish that contains omega-3 fatty acids.

　　fish protein

　　The protein content is about 15 to 24%, so fish is a good source of protein, and the absorption rate of these proteins is very high, about 87 to 98% can be absorbed by the human body. Fish oil is also rich in vitamins A and D, especially the liver of fish. Fish also contain water-soluble vitamins B6, B12, niacin and biotin.

　　Fish also contain minerals. The most noteworthy ones are cloves or sardines. If eaten with bones, they are a good source of calcium. Saltwater fish are rich in iodine. Others such as phosphorus, copper, magnesium, potassium, iron, etc. can also be ingested when eating fish.

　　In addition, DHA contained in fish is mainly found in the brain, retina and nerve middle. DHA can maintain the normal function of the retina, baby This nutrient is especially needed to promote the healthy development of vision; DHA is also greatly beneficial to human brain development and intelligence development, and is also an indispensable nutrient for the growth of the nervous system.

　　Medical research finds that Eskimos suffer from cardiovascular disease disease The proportion is very low. It turns out that their diet contains a large amount of marine fish rich in EPA and DHA. A survey in Japan also found that residents of coastal fishing villages have a lower rate of cardiovascular disease than inland farmers.

　　The two special omega-3 series fatty acids in fish, EPA and DHA, can lower blood lipids, especially triglycerides and low-density lipoprotein cholesterol (bad cholesterol), which can make platelets less likely to aggregate. They can also prevent cardiovascular disease and stroke caused by thrombosis, and can protect the heart.