Research has shown that cooking with garlic and onions can be a simple, tasty and cost effective way to help prevent cancer AND encourage detoxification. Garlic has also been shown to be very effective in optimizing cholesterol levels and has antibacterial, antirviral & antifungal properties! In fact, garlic has been shown to have over 150 beneficial properties. Regular use of garlic for health benefits has been documented as far back as ancient times during the Roman Empire! The best use of garlic is fresh, as many of the key compounds break down readily after preparation.
For additional information see the following study: http://www.ncbi.nlm.nih.gov/pubmed/16332117