Title | Preventing the common cold with a garlic supplement: a double-blind, placebo-controlled survey. | ||
Author | Josling, P | ||
Journal | Adv Ther | Publication Year/Month | 2001-Jul-Aug |
PMID | 11697022 | PMCID | -N/A- |
Affiliation | 1.Garlic Centre, Battle, East Sussex, United Kingdom. |
One hundred forty-six volunteers were randomized to receive a placebo or an allicin-containing garlic supplement, one capsule daily, over a 12-week period between November and February. They used a five-point scale to assess their health and recorded any common cold infections and symptoms in a daily diary. The active-treatment group had significantly fewer colds than the placebo group (24 vs 65, P < .001). The placebo group, in contrast, recorded significantly more days challenged virally (366 vs 111, P < .05) and a significantly longer duration of symptoms (5.01 vs 1.52 days, P < .001). Consequently, volunteers in the active group were less likely to get a cold and recovered faster if infected. Volunteers taking placebo were much more likely to get more than one cold over the treatment period. An allicin-containing supplement can prevent attack by the common cold virus.