Garlic can aid in the prevention of disease, such as the common cold

Garlic has shown potential as a cold and flu prevention treatment. Garlic has been demonstrated in studies to lessen the risk of being sick in the first place, as well as the length of time you stay sick. It may also help to lessen the severity of the symptoms.

A 12-week trial revealed that taking a daily garlic supplement decreased colds by 63% when compared to a placebo. Cold symptoms were also reduced by 70% in the garlic group, from 5 days in the placebo group to just 1.5 days in the garlic group. In another study, a high dose of aged garlic extract (2.56 grams per day) decreased the number of days unwell with a cold or flu by 61%. However, one review found that the data is insufficient and that additional research is required. Despite the lack of strong evidence, adding garlic to your diet may be worth considering if you frequently get colds.