The elemental dairy protein casein, has been linked to addiction, anger, mood swings, rage and more. Casein is a protein that takes a long time to digest. The brain is affected based upon the health of the stomach. Studies are demonstrating that GMO-foods and beverages, gluten, sugar/carbs are associated with mood-challenges.
Researchers recommend the reduction or elimination of diary to stabilize extreme mood swings.
Full Article: One Green Planet