During leisurely meals, various delicious dishes are indispensable, among which fish is the most popular. Fish not only tastes delicious but is also nutritious. It is said that fish is a treasure trove of nutrients, including the eyes. Does eating fish really improve eyesight? Is it true?
What nutrients are found in fish?
1. Promotes brain development
A study published in the American Journal of Public Science and Library - Comprehensive found that "Omega-3 fatty acids can affect memory storage function, and continuous consumption can steadily improve cognitive abilities."
2. Protects vision
Age-related macular degeneration is the main cause of vision loss in the elderly.
A French study found that "Omega-3 fatty acids found in fish can reduce the risk of age-related macular degeneration caused by aging."
3. Protects the heart
A study by the Harvard School of Public Health found that "consuming about 2 grams of Omega-3 fatty acids through eating fish once or twice a week can reduce the risk of sudden cardiac death by 36% and overall mortality by 17%."
4. Protects the skin
Research has shown that eating fish can protect the skin from damage caused by ultraviolet rays, which helps protect collagen in the skin, preventing sagging, wrinkles, or drooping.
5. Promotes development
A study published in the British Medical Journal "The Lancet" in 2007 found that "eating 3-4 servings of seafood, including fish, per week (about 340 grams), significantly improves infants' intelligence, language skills, and motor abilities after birth."
6. Prevents asthma
A Dutch study on children found that "eating fish during childhood can effectively prevent asthma. Children who started eating fish between 6-12 months had a 36% lower risk of developing asthma by the age of 4."
Does eating fish really improve eyesight?
Many people say "eating fish eyes can improve eyesight, so we should eat more in daily life."
This statement needs to be viewed objectively. It is true that fish eyes contain a certain amount of EPA, DHA, and other "n-3 series polyunsaturated fatty acids," but their content is not significant or outstanding;
It is difficult for them to have the desired effect on improving eyesight. There is a difference between containing nutrients and achieving the desired dosage. It is necessary to approach it scientifically.
Who should not eat a lot of fish?
Firstly, people who are allergic to fish should avoid eating it.
Secondly, people with hyperuricemia or gout should limit their intake and consume fish according to their condition.
Which parts of the fish should not be eaten?
1. Do not eat fish gallbladder
Many people say "eating fish gallbladder can help clear heat and improve eyesight," but this is absolutely a rumor. The fish gallbladder on the fish should not be eaten.
Most fish gallbladders contain toxic substances such as bile acids and hydrogen cyanide, which are more toxic than the same amount of arsenic.
2. Not all fish heads can be eaten
Many people like to eat fish heads, believing that "eating fish brains can nourish the brain," but this statement has no scientific basis and should not be believed.
Fish heads can be eaten, but they need to be selected. For fish such as sharks, swordfish, and tuna, which have higher levels of heavy metal mercury, it is best to avoid eating the heads.
