Preventing The Common Cold With A Garlic Supplement: A Double-blind, Placebo-controlled Survey
| Effect | Decrease |
| Trial Design | Double blind |
| Trial Length | 1-6 months |
| Number of Subjects | 146 |
| Sex | Both Genders |
| Age Range | 30-44, 45-64 |
Supplementation of garlic powder (180mg allicin) over the course of twelve weeks noted that the supplementation group recovered from sickness faster (1.52 days of sickness relative to 5.02 in placebo) and experienced sickness at a lower rate (111 cumulative sick days, relative to 366 in placebo), suggesting immunity from the common cold by reducing both length and occurrence by 70%.
