Research, time and again, is finding children with nutrient deficiencies who are diagnosed with ADHD. In this article, children aged 5-15 years old showed improvement from iron supplementation. Interesting tip: other possible symptoms of iron deficiency include restless leg syndrome (in both children and adults), and oddly, a craving for chewing ice.
Zinc sulfate as an adjunct to methylphenidate for the treatment of attention deficit hyperactivity disorder in children: A double blind and randomized trial
Nutritional deficiencies are common and do have consequences. In this study, children diagnosed with ADHD, had a significant reduction in symptoms from supplementing with zinc. Among its many essential roles, zinc helps with the production of dopamine in the brain, and deficiencies are thought to play a role in ADHD.
If you want to understand more about the role of diet in ADHD, take a look at this comprehensive meta-analysis of the research. Food intolerances and food allergies are the most researched in ADHD treatment, in terms of the effect of certain foods and food additives on the functioning of our brains and nervous system.
Effects of a restricted elimination diet on the