I was surprised to learn that yogurt may cause heart palpitations. However I know from my own experience that I would sometimes develop an irregular heart beat after eating this product. Orange juice or an orange can help reduce my heart palpitations along with calcium and magnesium supplements. Other people have also told me that an orange or the juice works for them as well. I've not tried the apple cider vinegar but will do so to see if it may work for me. I've had nuclear stress testing and apparently do not have coronary artery blockage thus far. I have learned through personal experience that high blood pressure meds (once took mycardis) may cause heart palpitations even after a year or more of use.