Dr. Wald’s answer: ”Melatonin should be used under the supervision of a trained nutritionist or medical specialist. Having said this, there are many indications for adolescents to benefit from melatonin supplementation. Salivary testing is probably reliable to help determine how much should be used as is body weight and the particular reason you are using the melatonin. If a young person takes too much melatonin this can cause adverse (harmful) hormonal feedback and create other hormonal and health problems. On the flip side, melatonin is generally quite safe and can help sleep, reduce anxiety and is an important antioxidant for many body tissues.” Check out Dr. Wald’s nutritional products at: www.blooddetective.com especially Reds Protect, Green’s Detox and Longevity Complete.