Prevention with Vitamin C supplement (Ascorbic acid tablets). 4 valid study conducted, with 1,691 children. Prevents only 1 in 236 Common Cold cases, or less. May slightly reduce severity of cold and speed up recovery. Seems safe.
Do not use this treatment:
It does not prevent cold symptoms in 99.6% of the cases. The treatment seems safe but pointless.
Any excess of Vitamin C (Ascorbic acid) is evacuated from our body through the urine. This makes vitamin C pretty safe even in high dosages.
Ascorbic Acid tablets
healthy Children, 2 to 16 years old
Daily dosage of 0.2 gram per day, or more (adjusted to age, gender and body weight).
Prevention of Common Cold symptoms
Prevents only 1 in 236 cases of Common cold. Speeds up recovery by 14%, and may reduce the severity of colds.
0.2-2 gram of Vitamin C per day seems safe for healthy children and has no side effects. Doctor consultation is needed for diabetic children, or when in-taking iron (since Vitamin C increases iron absorption).
Common Cold (symptoms caused by viral infection of the upper respiratory system).
Symptoms and signs:
Cough, general discomfort, headache, runny nose, sneezing, sore throat, stuffy nose and weakness.
Bacterial infections: lung infection, middle ear infection, strep throat, sinus infection.
Vitamin C (supplement)
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Vitamin C, also known as ascorbic acid and L-ascorbic acid, is a vitamin found in food and used as a dietary supplement. As a supplement it is used to treat and prevent scurvy. Evidence does not support use in the general population for the prevention of the common cold. It may be taken by mouth or by injection. It is generally well tolerated. Vitamin C was discovered in 1912, isolated in 1928, and first made in 1933. (source)
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