“…In some cases, medication can lead to negative side effects, such as sleep disturbances, loss of appetite, stomach complaints, nausea, and vomiting. Many factors play a role in the pathophysiology and treatment of ADHD: genetics, neurology [ 9 ], and psychology [ 10 ], but also food intolerances [ 5 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Already 100 years ago, Shannon [ 10 ] observed increased restlessness and sleep disturbances in children with food intolerances.…”