I don’t know. He also doesn’t believe that postural ectopics are a thing. He thinks people just don’t know what their heart is doing until they lie down at night. My Primary said he’s 1000% sure postural ectopics are real and he thinks they are related to a vagal phenomenon. Specialists of all stripes get locked into what they learned in med school and many are just not aware, or interest in things like supplements. It’s rare to find an open minded doctor. So I do my own research. And my primary physician ROCKS.