"it helps keep me calm and focused at work. i do suffer insomnia if i don&#039;t take my daily dose consistently. i tried to stop taking it and my metabolism took a severe nose dive even though i never had weight problems before. i did lose about ten pounds when i started taking it but it leveled off and i was able to maintain a healthy weight. i would have liked to try a more natural approach to managing my add but the weight gain has added depression and therefore i&#039;m back on it."