5 benefits of apple cider vinegar (and a few duds), according to experts Apple cider vinegar is one of the most popular natural health products around, with claims that it can do almost anything, including sanitizing toothbrushes, curing diabetes and whittling waistlines. What are the real benefits of apple cider vinegar, according to science? CNN asked seven experts and looked at dozens of studies to bring you the facts. Here are five ways apple cider (or any vinegar) can help your health — plus a few popular preconceptions that didn’t pass muster. Lowering blood sugar What’s the most popular use for apple cider vinegar? If a simple internet search is any measure, it involves diabetes.