M.H.
Hi G.,
You should know within a time or two in giving it to her. I've found there are not as many allergies to milk as there are to the chemicals that are within it. My DD was diagnosed with lactose intolerance and turns out there was no problem with the lactose, simply the hormones, preservatives and antibiotics within the milk. She has alway been fine with organic...
Hope this helps.
M.