Sugar not a cause,
may calm. A few children
have an allergic or pharmacologically mediated behavior change with some dyes (e.
g., tartrazine, quinolineyellow, sunset yellow, carmoisine, ponceau 4r, & allura red ) & sodium benzoate in foods & medicines. If a child is allergic to certain foods or dyes & behavior changes on exposure, an elimination diet is worthwhile. Diet doesn't cause adhd.