Supplements For Attention Deficit Hyperactivity Disorder (ADHD/ADD) ADD, or Attention Deficit Disorder, is an old term for a disorder we today call ADHD, or Attention Deficit Hyperactivity Disorder. The term ADD was used until 1987, when the word "hyperactivity" was added to the name. ADHD is a common childhood disorder that causes varying degrees of learning and behavioural impairments. https://www.nationalnutrition.ca/children-s-supplements/add.html #ADDsupplements