Taking a large amount of vitamin C for a long time will cause urate, cysteine or oxalate stones. Take it in large quantities for a long time, and the daily dosage is more than one gram, which may cause diarrhea, red and bright skin, headache, frequent urination and so on.
Usually normal adults can supplement vitamin C through diet. Generally speaking, about 50 to 100 mg is needed every day, and chronic dialysis users usually need about 100 to 200 mg every day. For vitamin C deficiency, about 300 to 600 mg can be used every day.
Extended data:
Precautions:
1, can't be eaten with milk, milk contains vitamin B2 oxide, and vitamin C is reducible. If eaten together, vitamin C in milk will be oxidized, and vitamin B2 will be reduced, both of which lose their respective functions.
2, can not be used with calcium tablets for a long time, because long-term use of vitamin C can be combined with oxalate, if taken with calcium tablets at the same time, it will accelerate the formation of stones.
3, can not be eaten with pig liver, because pig liver is rich in copper and iron ions, vitamin C is easily oxidized and loses its activity, if eaten with pig liver rich in copper and iron ions, it will lose its efficacy.
4, do not eat with vegetables, because vegetables contain vitamin C to decompose mold, which will accelerate the decomposition of vitamin C and weaken the efficacy of vitamin C.
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