I do take calcium and vit. D for the CPS and it helps, but if I dont eat alot I pass out, sually the CPS follows a little, but if I dont eat a lot I just pass out, I mentioned the eating a lot and passing out because my head was getting really heavy around the same time, as I had been cutting back on the food, I had been hoping I would be able to eat normal amounts without begining to pass out and triggering CPS..see the docor called me hypersensitive, becaily the smallest of things like not eating enugh and starting to pass out with trigger a CPS attack. the eating a lot has more to do with not passing out then with the CPS itself, the CPS is just sort of affected by it. make any sence?