★★★★★
I'm overweight and often have acid reflux problems. A high-protein/low carb diet definitely works for me in alleviating this acid.... but when I'm bad (eating too late at night or eating too much pastry) I have found that a small glass of apple cider vinegar and water, gulped down, momentarily makes the burning in my esophagus worse--- but then seems to completely get rid of the acid condition. I've tried this several times and each time the results were the same. Rolaids work by neutralizing acid; does vinegar really work by adding more? I don't know, but it does work! One more anecdote: I told someone at my job about it, and she said her grandmother used to swear by it, too: a swig of vinegar helped acid indigestion. She also told me that in the "old days" people would swig some vinegar to see if they had strep throat-- if it burned like hell when it hit the back of the throat, they had it! I would imagine that the acid in the vinegar helped treat the strep, too.