ADHD
ADHD can be expressed as hyperactivity, perceptual motor impairment, emotional instability, general coordination deficit, disorders of attention, impulsiveness, disorders of memory and thinking, specific learning disabilities, and disorders of speech and hearing.
These characteristics are frequently associated with difficulties in school, both in learning and behaviour. Food additives and food allergies are known to be major factors in ADHD. Several clinical studies have shown that nutritional supplementation can improve mental function in school-aged children.