If you want to avoid catching a cold or the flu, you may want to consider taking a supplement containing aged garlic extract, or AGE.

A study published in Clinical Drug and Pharmacology reports that adults taking 600 mg of AGE twice daily for several years reported fewer cases or less severe symptoms of the cold and flu than they had experienced in the past when they had not taken AGE.

Aged garlic extract, available in the U.S. as Kyolic®, is an odorless product containing standardized levels of a protein fraction found to enhance the immune system.