We found out that he had several food allergies (wheat, corn, dairy, soy, and eggs) and those behavior stopped when we adjusted his diet. This is very interesting since some autistic kids improve on a gluten-free, dairy-free diet. Oh and BTW, we had blood work done for food allergies, and my son always came back as negative. They seem to have a high incidence of false negatives.
It may not be a false negative in the strict sense, but an indication that your son has food sensitivities or intolerances rather than true food allergies which are IgE-mediated and can cause anaphylaxis. It is an important distinction because when sensitivities and intolerances are referred to as allergies, it becomes difficult to convince people that food allergies are a life-threatening condition. This is a subject near and dear to my heart since both my children have food-induced anaphylaxis.
