I am sitting right now on a low pulse of 66 bpm after waking up. I have been following the guidance on this forum regarding diet the last 2 months (complete pufa avoidance, eating a lot of fruit, drinking milk, maximizing ratios like sugar:starch, calcium:phosphate etc). I have seen some improvement regarding metabolism (I was lower bpm before starting this diet), but there are days when I feel really off and tired. I keep track of everything on chronometer and taking care of meeting all rdas. I also supplement vit K, D, A and magnesium. I am considering adding Kelp supplement 325mcg to raise metabolism but I am worried about the study saying that it can consume the actual thyroid gland. I know dr. Ray Peat does not favor iodine supplements. What do you guys think about iodine? Any other suggestions to raise metabolism effectively, other than the common diet guidelines?