Does anybody know if there is a lot of calcium in wheatgrass? I think I may have asked this before, but I just don't know the answer. Oreo is not eating so great, but will knock you flat for wheatgrass. He's begging for it. The exotics vet said I might have to stop feeding him wheatgrass so I thought I would ask. I used to feed it to him on a daily basis for the past year. Then he got another stone so I'm leary (he also got green leaf lettuce and endive/chicory) Any thoughts?