Hello all, I am at the first stages of trying to deal with CFS or what I think is CFS. I am starting to take some of Dr. Teitelbaums regiment with Ribose and the Energy Revitalization System. I understand there are detractors on this forum, but I really just need to start trying something. I am already hypothyroid and take 75mcg Tirosint right now (not noticing any different from my old generic, but worth trying). Anyway, the Energy Reviyzaliation System has 100mg of Calcium (10% DV). I don't want to take this in the morning if it will interfere with the thyroid meds. What do you guys think? Is it low enough that it won't matter?