Melatonin is a hormone that has many functions. Produced at night by the pineal gland, it regulates the sleep-wake cycle, body temperature, blood pressure, and glucose tolerance; lack of melatonin can create serious medical problems.
Cutting back on dairy products was the medical advice of the last two decades. It was recommended to stave off everything from extra pounds to coronary heart disease. But recently, researchers are finding that maybe it was not such hot advice - not for losing weight, not for heart disease, and now... not for those at risk for diabetes.