Regarding garlic and onlions, it is interesting to note:
"Garlic is one of the best infection fighters available for both bacterial and viral infections. One of its many ingredients, allicin, is a natural antibiotic that does not appear to create resistant bacteria strains. In addition, fresh garlic extract has been shown to be virucidal to many viruses.Garlic possesses the ability to stimulate the immune system. It can stimulate the activity of the macrophages (white blood cells), which engulf foreign organisms, such as: viruses, bacteria, and yeast. Furthermore, garlic increases the activity of the T-helper cells (immune cells which are central to the activity of the entire immune system). Garlic may be particularly effective in treating upper respiratory viral infections due to its immune-enhancing properties and its ability to clear mucous from the lungs. The same component that gives garlic its strong odor is the one that destroys, or inhibits various bacteria and fungi. The component is allicin, and when crushed, combines with the enzyme allinase and results in antibacterial action equivalent to 1% penicillin.[NB: this is why you should not waste your money on so-called 'odourless garlic'!] Garlic is also effective against strep, staph, and even anthrax bacteria.
Everything that's been said about Garlic can be said about onion. Onions and garlic share many of the same powerful sulfur bearing compounds that work so effectively as anti-viral and anti-bacterial agents."
(source: http://www.jonbarron.org/immunity/immun ... ial-report)
...but also note this:
Along with garlic, onion (Allium) should be considered the most important natural aphrodisiac that have been known for centuries. Along with excellent nutritional abilities, onion has very powerful properties to boost libido and enhance sexual performance in both men and women.
(source: http://guide2herbalremedies.com/onions- ... ac-garden/)
Some 'food for thought' maybe...