Health Benefits of Apple Cider Vinegar Useful During Flu SeasonApple Cider Vinegar (ACV) has been known as a health tonic since at least the 1950s. Scientific studies exist to back up many of the health claims made for ACV. There are other vinegars that can do a few of the health solutions ACV manages, but overall, apple cider vinegar with the “mother” is considered the most effective to support healing. Raw apple cider vinegar, lemons, limes, and grapefruits should be a major part of preventing and recovering from colds and influenza, to make digestion easier, and raise pH values enough to make life for disease microbes, whether bacterial or viral, intolerable by increasing cellular respiration or oxygenation. When it comes to using ACV to make potent anti-flu or cold tonics, there are a few combinations using raw honey and herbs that are available.