Can apple cider vinegar be used for bloating? do capsules work?

Probably not, but...: When you say bloating are you relating expansion of your abdominal circumference to feelings of distension, fluid retention, constipation, overeating, or do you feel pregnant? Hard to answer your question without further information and clarity. Over what period of time have you noted the swelling--minutes or months, and what are your underlying medical problems (alcohol, liver ;/or gut disease).