**** FOUND CAUSE OF MY SVT: Too much vitamin D3. ****
I was first diagnosed with SVT about 11 years ago and started taking metoprolol (50mg daily). My first cardiologist performed an ablation and said that it was unsuccessful and had no explanation for why it failed. My most recent cardiologist had been trying to talk me into letting her do another ablation. She said that often times it would require multiple ablations over the coming years. I hesitated to let her and kept putting it off. About six months ago I read an article online about how too much vitamin D3 supplements can cause heart arrhythmia. I had started taking vitamin D3 capsules (5000 IU daily) for a few years before I started having the arrhythmias that all my cardiologists assumed were SVT's. After stopping the D3 supplements, it took about three months before my system was rid of it. Over those months, my "SVT'S" lessened in frequency (from about 1 or 2 events every other day). It has now been about three months since I have had absolutely zero SVT-like events and I'm now taking a much smaller dose of D3 (1000 IU daily). I'm posting this in the hope that someone else may be helped by my discovery. If only one person benefits from it that would be great. Take care.