As is well known, foods such as milk, fish, carrots, and scallions are beneficial for brain health, but there are also some foods that the brain dislikes. Research has shown that regularly consuming the following 5 types of food can lead to slow reactions, clumsiness, and even a decline in memory: overly salty foods
The human body's physiological need for salt is extremely low; for adults, less than 7 grams per day, and for children, less than 4 grams per day is sufficient. Regularly consuming overly salty foods can damage arterial vessels, affect the blood supply to brain tissue, and cause brain cells to remain in a long-term state of ischemia and hypoxia, leading to a decline in memory and premature aging of the brain. [China Food Network] Lead-containing foods
Lead can replace other minerals such as iron, calcium, and zinc in their activities within the nervous system, thus making it a major "killer" of brain cells. Lead-containing foods mainly include popcorn and century eggs. It should be noted that "lead-free century eggs" do not have zero lead content; they are just below the corresponding national standards and should also not be consumed in large quantities. Aluminum-containing foods
The World Health Organization states that the daily intake of aluminum by the human body should not exceed 60 milligrams. The alum in fried dough sticks is an aluminum-containing inorganic substance. If one consumes 50-100 grams of fried dough sticks in a day, this limit will be exceeded. Foods containing peroxidized lipids
Fried foods with oil temperatures above 200°C and foods exposed to sunlight for extended periods, such as smoked fish, roast duck, and roast goose, contain higher levels of peroxidized lipids. These can accumulate in the body, damage certain metabolic enzyme systems, and promote premature aging or dementia of the brain. Foods high in saccharin and monosodium glutamate (MSG)
Excessive intake of saccharin can damage brain cell tissue. Small amounts of MSG are safe to consume, but it is best for infants under one year of age and women in the late stages of pregnancy to avoid it. Consuming MSG in infants may lead to the necrosis of brain cells; for pregnant women, it can cause zinc deficiency in the fetus, affecting the child's intellectual development.