ADHD stands for Attention-Deficit/Hyperactivity Disorder. It is a neurodevelopmental disorder that affects both children and adults. People with ADHD typically exhibit persistent patterns of inattention, hyperactivity, and impulsivity that interfere with their daily functioning and development.
Diet is definitely something to consider in a person or child with ADHD. There are other factors to look into as well.
The most common offending foods in all brain disorders, especially for children, are sugar and gluten. Food dyes, especially red dye, can result in hyperactivity and inattention. Hydrogenated oils like vegetable/seed oils and fructose are inflammatory to the gut and brain. Biochemicals from these foods can reach the brain quickly causing neuro-inflammation.
Other options to explore are chemicals, toxins, mold and mycotoxins, gut microbes and gut inflammation.