Mr. Chen, 49, is highly valued by his boss for his outstanding performance at work, and has recently entrusted him with a major project. However, in the past two months, Mr. Chen has always felt that he is always tired and unable to lift his spirits at work.
He thought that his resistance might have decreased, so he went to the pharmacy and bought some vitamins, and at first he strictly followed the instructions to take one a day, but he still didn't feel any better. So Mr. Chen thought of using "fierce medicine" and increased one to eight.
After a short while, the condition not only did not relieve, but began to have jaundice, Boss Chen noticed that something was wrong, and hurriedly went to the hospital, after a series of physical examinations, came to the conclusion that he took a large amount of vitamins, causing drug-induced liver damage.
Mr. Chan must have taken a multivitamin, which is why he took too much vitamin A.
The first thing to note is that there are two types of vitamins, one is water-soluble and the other is fat-soluble.
The most well-known are vitamin C and B vitamins. Water-soluble vitamins have the property of not being overabsorbed, and since it is a water-soluble substance, when the limit required by the body is exceeded, the rest is carried away by the urine. Take vitamin C as an example, the recommended daily intake is 100 mg, and taking 1000 mg per day does not have much effect, vitamin C in the United States is generally 1000 mg per capsule, and our commonly used vitamin C effervescent tablets have 500 mg in one capsule.
Among them, fat-soluble vitamins include vitamins A, D, E, K, etc. Fat-soluble vitamins are easily stored in the liver, so the amount ingested accumulates. Among them, vitamin A is the easiest to obtain from food, but if you eat too much, it will produce a lot of *** Generally speaking, in the short term, if it exceeds the recommended daily dose by 20 times, it is very likely to have acute toxicity, and if it exceeds the recommended dose by 2-5 times continuously for a long time, it is very likely to have chronic poisoning. Because animal livers contain high amounts of vitamin A, acute poisoning caused by eating too much pork liver at one time (e.g., half of a meal) often occurs. Vitamin A toxicity can cause damage to the liver and can also cause damage to several organs in the body.
A common multivitamin supplement contains 800 mg of vitamin A, which is the recommended daily intake of 1 capsule for the human body, unless pork liver is consumed every day.
After Mr. Chen took vitamin pills, his condition did not improve, but he added 8 pills, which is 8 times the amount of vitamin A.
The best vitamin A supplement is carotene. Dark-colored vegetables like carrots and spinach are rich in carotene, which can be converted into vitamin A in the body. Miraculously, the conversion of carotenoids into vitamin A is related to the amount of vitamin A in the body, and once it reaches a certain level, the conversion rate slows down until it stops. Carotenoids are not toxic on their own, so consuming carotenoids is the safest method.
In short, you must not make your own decisions about taking medicine. If you wish to purchase on your own, please read the manual carefully and follow the instructions for use. If you have any questions or ***, please consult your physician, or at least consult a pharmacist.