Voedingsadvies El MondoResearch Question:
Swallowing of vitamin C lowers the chances of getting a cold?
Study Design:
This overview article contained 29 Rcts with 11306 participants.
The dosage of vitamin C was at least 200 mg per day.
Results and conclusions:
The researchers found that taking vitamin C in the ordinary population the chance of getting a cold non-significant with 3% [95% CI = 0.94-1.00] reduced. Non-significant is, there is no link to a 95% reliability.
The researchers found in 5 Rcts with 598 participants who performed physical efforts, that swallowing of vitamin C the chance of getting a cold significantly with 52% [95% CI = 0.35-0.64] reduced. Significant is, there is a link at a 95% reliability.
The researchers found that taking vitamin C the duration of colds in adults was significantly sho[95% BI = 3-12%] rtened by 8% and 14% in children[95% BI = 7-21%].
The researchers found that swallowing 1-2 grams of vitamin C per day the duration of colds in children significantly shortened by 18%. Significant is, there can be said with a 95% reliability that swallowing 1-2 grams of vitamin C per day really shortened the duration of colds in children.
The researchers concluded that swallowing at least 200 mg of vitamin C per day the chances of getting a cold only in people who have physical efforts (marathon runners, skiers and soldiers on subarctic exercises) performed, lowered. Further reduced swallowing at least 200 mg of vitamin C per day the duration of a cold.
Original title:
Vitamin C for preventing and treating the common cold by Chalker Hemilä H and E.
Link:
http://www.ncbi.nlm.nih.gov/pubmed/23440782
Additional information about El Mondo:
Read more about vitamin C.
200-300 g of vegetables and 2-5 pieces of fruit per day on average 200 mg vitamin C.
This meal delivers 210 mg of vitamin C.
An overview article of Rcts answers the following question: "Is swallowing food supplements make sense?"
A review article is a collection of so far available scientific articles about a certain subject.