All my Big Girls over the years have enjoyed a bit of plain yogurt as a treat, given maybe once a week or less. Wondering if my Littles (2 BAs and 1 EE) would be ok with a bit of yogurt? Again, not routinely, just every once in a while. Not sure if it is too much calcium at this point in their young lives or if it would even serve as a probiotic supplement. Your thoughts?