I see that this is an old post, but I wanted to give you an example of the extreme. I was home tested for dairy allergy back in the late 70s. At that point, my mother took me and my siblings off of milk (except for the occasional "Sweet Tooth Sundae Palace" treat night). I never took it seriously until my pregnancy with my daughter. At that point, I deleted all dairy from my diet. I have suffered from depression since childhood. At least, from childhood on I have had the ability to see all the crap in the world. I was diagnosed with clinical depression in '92. During my pregnancy('97) I felt better than ever. I was happy and bouncy. I stopped brestfeeding my daughter when she was 3 years old. At that po int, I began ingesting small amounts of dairy. I became increasingly withdrawn. I never put the 2 together until my fiancee and I moved in together, 2.5 years ago. What I learned, by being in constant interaction with someone old enough to notice the difference in me, was this: 1. The longer I am dairy free, the worse my reaction when I have it. 2. The amount of dairy I eat in NOT proportional to my reaction. 3. I value my life and will never, again, eat dairy. You see, I become suicidal when I court dairy. I can no longer see any possibility of goodness in my life. I see myself as the root of all that is wrong with the world. Thankfully, I have come to learn that it will pass; the worst of it in just a few days. So, yes, I think dairy is a factor in the equation that is depression. I still suffer from the blues, but I no longer scream in terror when my fiancee attempts to find out wha t's wrong. My daughter is also sensitive to dairy, but so far I have only noted the standard dark circles under her eyes. I'm kind of nervous, though. Dairy allergies and depression run in my family. I'm praying that she doesn't suffer like I did, on her journey to accepting the allergy...