Well, Spencer is 2 years and 2 months and just tried for the 4th time (I think) to intro yogurt...it's a no go again, she got a red rashy face, a hive on her hand, lots of gas, allergic shiners, runny nose and is constipated. All that from probably 3 tbsp of yogurt. I honestly have more hope for her to outgrow the egg allergy than MPI. Masyn was able to tolerate milk by 11-12 months old, I can't remember if I gave her yougurt/cheese before that.