Anyone else out there who cant tolerate calcium carbonate?

[dragonfly42]

So im meant to be taking multivitamins but the main ingredient is calcium carbonate and it seems to upset my stomache and bowel, so does anyone know if its possible to get Shop bought vitamins without this ingredient in?
Its the main ingredient in rennie tablets thats how i found out that i cant tolerate it but seems to be in most over tge counter vitamins and remedies, dunno what else to try!

Go to see a Doctor. I find it very hard to believe anyone can be allergic or sensitive to calcium carbonate, so I would want this investigated further. (Calcium carbonate is basically chalk, and incredibly safe.) Please go and see your doctor.

Ok, it just seems that whenever i take rennie or these vitamins i get an upset stomach, maybe a coinsidence as i do have ibs. thanx