According to sources, it can be quite beneficial for those with halitosis to drink a little bit of apple cider vinegar each day (preferably mixed with something else, due to the taste). The benefits that you reap depend on how dedicated you are to your health, since not everyone can handle drinking this.
Apple cider vinegar is actually a natural anti-bacterial agent and it contains potassium, magnesium, calcium, phosphorous, chlorine, sodium, sulfur, copper, iron, silicon and fluorine, all of which the human body need. It is created by crushing fresh apples and having them mature in wooden barrels. The fermentation properties of the apples are accelerated. When vinegar matures, it has a dark web-like bacterial foam called “mother”. Natural vinegars that have the “mother” have nutrients that vinegars available in stores do not have, so it is recommended that you get Natural Apple Cider Vinegar (with an average pH level of 5-7).
Since apple cider vinegar has acidic properties, it actually serves as a bad breath / halitosis cure. It also helps with the following ailments: sinus infections, sore throats, high cholesterol, skin conditions, food poisoning, allergies (in both humans and animals), immune system problems, muscle fatigue after exercising, metabolism issues, constipation, arthritis, gout, bladder stones, and urinary tract infections.