The American Society for Microbiology reports that by age 18, about 80 percent of patients with cystic fibrosis are chronically infected with the bacterium pseudomonas aeruginosa, which promotes an inflammatory response that destroys lung tissue. The infection frequently leads to serious related health issues. According to collaborative research led by Tim Holm Jakobsen, Ph.D., and Michael Givskov, Ph.D., of the University of Copenhagen, in Denmark, garlic, which acts as a powerful natural antibiotic, could help.

The onion-related herb contains ajoene, the major component of a multitude of sulfur-containing compounds, which is produced when garlic is crushed. Ajoene inhibits the expression of 11 key genes controlled by cell-to-cell communication and is regarded as crucial to the ability of the bacterium to cause disease.