Apple cider vinegar has gotten some serious hype lately for its supposed health benefits — and if you love apple cider vinegar so much that you're using it as a salad dressing or produce topping, by all means, go for it! Vinegar contains zero calories, enhances flavor, and poses a low health risk, except for acid reflux-sufferers and diabetics.But if you're solely sipping the stuff for its purported effects, science says you're out of luck. Those claims that ACV will reverse everything from diabetes to weight gain simply don't have the research behind them — at least for now — so there's no need to swallow spoonfuls or waste money on apple cider vinegar pills. You're probably better off just eating an actual apple instead, which will provide fiber and high levels of antioxidants.Here's what apple cider vinegar actually can and can't do for your health.