  urlLink Guardian Unlimited | The Guardian | Can popping fish-oil pills stop this tantrum? : "Researchers who have studied the effects of fish oils say they are most likely to have an impact on children whose difficulties are at least in part due to disorders such as attention deficit hyperactivity disorder (ADHD), dyslexia, autism and dyspraxia (dyspraxics often have difficulty carrying out complex, sequenced activities or may be mildly clumsy). There is some scientific evidence that an imbalance of certain fatty acids, which happen to be found largely in fish oils, may contribute to many of these. Further studies have found that dyslexia and the inattentiveness and impulsiveness associated with ADHD can be improved by fish-oil supplements.
A study into the effect of fish-oil supplements on more than 100 dyspraxic children in Durham is nearing completion. There are some tell-tale signs that can indicate an imbalance of Omega-3 fatty acids in the diet. Allergy-related conditions such as eczema, asthma and hayfever are more common, as are poor concentration, depression, excessive mood swings and undue anxiety. Others with imbalances can experience difficulty getting to sleep at night and visual disturbances when reading, such as words and letters moving around. " 
