As we all know, milk, fish, carrots, green onions and other foods have the function of strengthening the brain and improving intelligence, but some foods are disliked by the brain. Studies have proved that people's brains will be slow, clumsy and even have poor memory if they eat the following five foods regularly.
1, salty food: the physiological demand for salt is extremely low, below 7 grams per day for adults and below 4 grams per day for children. Eating salty food often will damage arteries and blood vessels, affect the blood supply of brain tissue, and make brain cells in a state of ischemia and hypoxia for a long time, which will lead to memory decline and premature aging of the brain.
2. Lead-containing food: Lead can replace iron, calcium, zinc and other minerals in the nervous system, so it is a big "killer" of brain cells. Lead-containing foods are mainly popcorn and preserved eggs.
3. Aluminum-containing food: The World Health Organization pointed out that the daily intake of aluminum by human body should not exceed 60mg, and the alum in fried dough sticks is an inorganic substance containing aluminum. If you eat 50- 100g fried dough sticks a day, you will exceed this amount.
4. Foods containing lipid peroxide: fried foods with oil temperature above 200℃ and foods exposed to the sun for a long time, such as smoked fish, roast duck and roasted goose, contain more lipid peroxide, which will accumulate in the body, causing damage to some metabolic enzyme systems and promoting premature aging or dementia of the brain.
5, foods containing more saccharin and monosodium glutamate: too much saccharin intake will damage brain cells; A small amount of monosodium glutamate is safe, but it is best not to eat it for infants under one year old and pregnant women in the third trimester.