Foods that may lead to Bad Breath due to volatile sulfur compounds

Food, if it sits out too long will spoil. That action is due to anaerobic bacteria breaking down proteins in that particular food. In milk, the odor of sour milk is caused by relatives of the bugs that create bad breath, when they break down proteins in milk (and all dairy foods). A reaction takes place where 'the bad breath bugs' extract sulfur compounds from the amino acids in these proteins. Specifically, the amino acid Cysteine is converted to Hydrogen Sulfide (the rotten egg smell) and Methionine becomes Methyl Mercaptan (which smells like a cross between old socks and garlic.) More....