My 85 year old father has high readings of potassium, serum 5.5 mmol/l calcium, serum 10.6 mg/dl vitamin D 25-hydroxy 121.0 ng/ml The doctor has him on a lot of supplements - bone up, centrum sliver, D3 - 50 weekly, etc I asked about the high levels and dr said can t ever be too high for calcium but the articles I m reading and gut instinct says too much has side effects & consequences too just like too little. What do you think?