Do Garlic supplements reduce the risk of the common cold?

The team, from the University of Western Australia, published its findings online in the July issue of the Cochrane Collaboration, an international nonprofit that analyzes health care information.
That study, in which 146 participants were randomly assigned to take a daily garlic supplement or a placebo, found that those taking the supplement got fewer colds over the three-month study period than those taking the dummy supplement. They also got over their colds faster.
Among ayurvedic preparations 'Lashunadi-Vati' can be useful as garlic suppliment.