With dairy products one can switch to Soy. Vanilla Soy is easier to drink taste wise. After I did all this, and had great results, but not perfect yet, I went one step further. I had a hair analysis done on my son, at an extremely reputable place. His results showed High levels of Aluminum and Zinc toxicity.
Aluminum deals with focusing and memory, and zinc deals with behavior.
Another type of test that I had done while waiting for the hair analysis results to come back in the mail, was to test for assimulation of different metals in the body. Guess what, Aluminum and zinc were the only 2 that showed that the cells were not absorbing it properly. If someone says food is not the problem, they're right. It's most probably food and Many other problems such as was my son's. Always purchase only top well known supplements from health food stores.