Dustless chalk may cause health problems in children with a milk allergy
Blackboard chalk may trigger allergies
6:13 AM, May 8, 2013
Children with milk allergies may be allergic to school. Dustless chalk may be to blame.
Many teachers use the chalk to keep their hands and classrooms clean. According to a new study, this kind of chalk contains a milk protein, which can trigger breathing problems in kids with a milk allergy.