If you take too much apple cider vinegar you might experience throat burn, digestive problems, Bone loss and low potassium levels and Delayed Stomach Emptying.
If you only take a little bit of Apple Cider Vinegar then you shouldn't experience these side effects unless your body just doesn't agree with the Apple Cider Vinegar.
Apple Cider Vinegar is very healthy in moderation though and can help lower blood pressure, help to strengthen bones, help with weight loss, relieve leg cramps and upset stomachs, slow the aging process and reduce your Cholesterol levels.