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Don't treat vitamin medicines as daily nutritional supplements

Views: 0     Author: Site Editor     Publish Time: 2022-10-05      Origin: Site

Although vitamins are one of the nutrients that the body needs to maintain normal metabolism and function, the human body needs only a small amount of vitamins every day, and most of them can be obtained from food. Adults eat more than 250 grams of grains, more than 125 grams of meat and fish eggs, more than 300 grams of vegetables and more than 200 grams of fruits every day, which can basically guarantee the various vitamins needed by the human body. It is not advisable to take vitamin medicines without restriction.


   Because the content of vitamin drugs is usually greater than the daily required intake, excessive use may cause waste and increase the burden on the kidneys, and some may accumulate in the body and cause adverse reactions, which are harmful to the body. Therefore, except for special groups such as partial eclipses, chronic diseases, and pregnant women, which can be supplemented with small-dose compound preparations of vitamins, vitamin drugs should not be regarded as daily nutritional products.


   Vitamin medicines are all over-the-counter medicines that people can take on their own. When calculating the daily intake of vitamins, it is necessary to calculate not only the content of medicines, but also the content of food. Taking vitamin C as an example, taking 100 mg per day is already a pharmacological dose, and more than 1000 mg is an overdose. If a healthy person takes 1000 mg of vitamin C effervescent tablet per day, and then eats a certain amount of fruit (such as kiwi fruit with vitamin C content of 420 mg in 100 grams of fruit, 380 mg of fresh dates, 80 mg of strawberries, 50 mg of oranges), can cause vitamin C excess.


Vitamin intake and adverse reactions

When it is really necessary to take vitamin medicines, it is recommended to refer to the following reference intakes of dietary nutrients for Chinese residents, the dosage and treatment amount of medicines, and the adverse reactions caused by overdose published by the Chinese Nutrition Society:ascorbic acid 500mg uses -NhSquirrel


   Vitamin A:


   The daily intake for adults is 2,500 IU, while the drug dose is 5,000-25,000 IU per pill. Long-term high-dose use can cause toxic reactions such as headache, irritability, loss of appetite, itchy skin, dry hair, chapped lips, fracture and bone pain.


   Vitamin B1:


   The required daily intake for adults is 1.5 mg, while the drug is 5-10 mg per tablet, and the therapeutic dose is 30-60 mg per day. Increased oral doses do not increase absorption, but are excreted by the kidneys.


   Vitamin B2:


   The required daily intake for adults is 1.4 mg, while the drug is 5-10 mg per tablet, and the therapeutic dose is 15-30 mg per day. Increased oral doses do not increase absorption and are excreted by the kidneys.


   Vitamin B6:


   The required daily intake for adults is 1.2 mg, while the drug is 10-50 mg per tablet, and the therapeutic dose is 30-60 mg per day. Increased oral doses do not increase absorption and are excreted by the kidneys.


   Vitamin B12:


   The required daily intake for adults is 2.4 micrograms, while the drug is 25 micrograms per tablet, and the therapeutic dose is 25-100 micrograms per day. Increased oral doses do not increase absorption and are excreted by the kidneys.


   Vitamin C:


   The required daily intake for adults is 100 mg, while the drug is 50-500 mg per tablet, and the therapeutic dose is 150-600 mg per day. Excessive use can cause nausea and vomiting, diarrhea, abdominal pain, hyperacidity, gastric reflux, intravascular hemolysis or coagulation, uric acid, and aggravate urinary tract stones.


   Vitamin D:


   The daily intake for adults is 200 IU, while the drug is 10-10,000 IU per pill, and the therapeutic dose is 25-10,000 IU per day. Long-term use in large amounts can cause adverse reactions such as hypercalcemia, loss of appetite, vomiting, diarrhea, and renal dysfunction.


   Vitamin E:


   The required daily intake for adults is 14 mg, while the drug is 5-200 mg per pill, and the therapeutic dose is 30-300 mg per day. Long-term use of large amounts can cause headaches, dizziness, nausea, weakness, chapped skin, blurred vision, menorrhagia or amenorrhea, and decreased immune function.


   Folic Acid (Vitamin M):


   The required daily intake for adults is 0.4 mg, while the drug is 5 mg per tablet, and the therapeutic dose is 5-30 mg per day. Long-term use may cause anorexia, nausea, abdominal distension and other reactions.