Apple cider vinegar
Apple cider vinegar is the product of fermenting pulverized apples – fermentation produces alcohol, and if you ferment it further it produces vinegar. Vinegar has been used for centuries for cooking, cleaning, making pickles, and killing weeds. It also has been a folk remedy for generations, and apple cider vinegar in particular has seen a recent upswing in popularity.
Try apple cider vinegar for bad breath
Dilute one tablespoon of apple cider vinegar in a glass of water and drink before each meal, or gargle for 10 seconds after a meal.
Why It May Work
Little research has been conducted about the breath-freshening properties of apple cider vinegar, and therefore it has not been proven effective at all. It may work because bad breath can be caused by improper digestion, and apple cider vinegar is a digestive aid. It also contains natural antibacterial properties, which could kill odor-causing bacteria in the mouth and between teeth.
Apple cider vinegar is can damage tooth enamel, the esophagus, and other soft tissues. Long-term use can lead to lowered bone density and potassium levels, and can negatively affect insulin levels. Those with osteoporosis, diabetes, and low potassium should not take apple cider vinegar in large amounts.