Hello! First of all, I wish you good health! Because of our fate, let me talk to you about vitamins. Vitamins are a kind of substances necessary to maintain normal metabolism and basic functions of human body. Vitamins are mainly used to supplement vitamins and special needs in clinic, and can also be used as auxiliary drugs for some diseases. However, vitamins should not be regarded as nutrients and used without restrictions. Excessive use of vitamins can cause adverse reactions or potential toxicity. 9) Vitamin C (ascorbic acid) Vitamin C is a water-soluble vitamin and the most widely known nutrient. It is not only a beauty panacea, but also an antioxidant, cytoprotective agent and even an effective anti-cancer vitamin. It is ubiquitous in vegetables and fruits, but it is easily destroyed by changes in the external environment. 1. daily intake: the recommended daily intake for adults is 100 mg. 2. Supplement cycle: Vitamin C only stays in the human body for 4 hours, so it should be supplemented at least twice a day. 3. Food sources: green leafy vegetables, green peppers, tomatoes, peppers, cauliflower, potatoes, apricots, apples, peaches, etc. 4. People in need: ① It is good for people who smoke, drink too much and love to eat meat to supplement vitamin C. ② People who take birth control pills, antibiotics and aspirin should increase their intake of vitamin C. ③ Carbon monoxide will destroy vitamin C, so people living in cities should increase their intake of vitamin C. 5. Lack of symptoms: a serious lack of vitamin C will lead to scurvy. 6. Overexpression: Whether there are side effects has not been confirmed. Vitamin E (tocopherol) is a fat-soluble vitamin, which is called a vascular scavenger. It has a significant effect on preventing cardiovascular diseases and has a strong antioxidant effect. It can not only prevent adult diseases, but also has the functions of delaying aging and keeping young. 1. daily intake: the daily intake of adults is10-12mg. Pregnant women and lactating women should increase 5- 10 mg. Menopausal women need 20 mg. 2. Supplementary period: 65438+ 0-2 times a day. 3. Food sources: soybeans, vegetable oils, malt, dried fruits, oranges, green leafy vegetables, unrefined grains, eggs, eels, squid, etc. 4. People in need: ① People who drink chlorinated tap water must take more vitamin E; 2 people who take birth control pills and hormones should supplement vitamin e; ③ Patients with cardiovascular diseases, Parkinson's disease, pregnant women and middle-aged and elderly people should be supplemented with vitamin e 5. Lack of symptoms: hemolytic anemia, muscle degeneration, reproductive dysfunction, hair loss, aging, etc. 6. Overexpression: abdominal pain, diarrhea, precocious puberty in children and adolescents, breast swelling, dizziness and nausea. ..... Love Tips: Please consult the local regular (Chinese medicine) hospital for the above-mentioned drugs (methods and prescriptions) and choose them according to your own physiological characteristics and different pathological conditions. If you are satisfied with the above answer, please don't disappoint my kindness and adopt it as an answer in time.