Hi All I wasn't sure where this fit really so posting here. I was prescribed calcium since I have Crohn's, coeliac and osteopenia. I tried Adcal and Calcichew, but don't seem to be able to digest calcium carbonate well; it just sits in my belly like a brick. I know that I can tolerate calcium citrate, and have bought this in the past, but the issue here is financial so I need something on prescription. I spoke to my GP yesterday, and she searched and found 'Sandocal' (which she prescribed). This is an effervescent tablet that dissolves into citrate and free calcium ions, "problem solved", or so I thought. However I get home, and have a look at the ingredients list: Calcium carbonate Calcium lactate gluconate Citric acid anhydrous (fine granulate) Orange flavour powder (contains: orange essential oils, maltodextrin, arabic gum, sorbitol (E 420), dextrose) Aspartame (E951) Macrogol 6000 Sodium hydrogen carbonate The ones in bold are worrying me. I know Macrogol is used at a lower molecular mass as an osmotic laxative. Aspartame I know is 'bad' but I don't know enough about why, or at what dosage, or whether it would be reasonable to make allowances for a small dose when weighed up against osteoporosis. I take vitamin D and occasionally magnesium when I feel I need it. I've tried vitamin K but generally feel worse on it. What are your experiences, thoughts?