(The Best Years in Life) Bad breath (or halitosis) can have many causes, including bacteria in the mouth, stomach and intestine problems, sluggish bowels, sinus or throat infections, certain foods, and tobacco and alcohol. Fortunately there are many safe and natural ways to help eliminate the causes of bad breath and freshen breath. Begin by eliminating the causes of bad breath and taking steps to include dietary, lifestyle and other practices which lead to fresher breath. Read More.