I'm not sure but I think Dr. Oz recommends melatonin too. I'm pretty sure he's mentioned it on his show. For sure he didn't say anything bad about it. I would have noticed and remembered that since I have more than half of the bottle left from the one I bought. I think Dr. Oz is a pretty good source of information.
Ah, Dr Roizen surprised me with
this information Dr. Roizen is the dude who writes books with Dr. Oz and is on his show a lot.
Melatonin is good for blood pressure and reduces stress. Hmm.
I'll save you a click. Here's his whole answer to "what is melatonin"
The pineal gland produces a substance called melatonin, which conducts the symphony of your hormones.
Melatonin modulates menstruation, helps control desire for mating, helps lower heart rate and blood pressure, increases immune function, and helps decrease stress by blocking the body's stress response. Plus, it helps regulate sleep.
If you're a trivia expert, you may remember melatonin as the neurotransmitter that helps bears hibernate. Its levels peak at night and during winter months. (Serotonin, which converts to melatonin, helps regulate our daytime activity.)
When the lights go out, your pineal senses that and starts producing melatonin. When you lose melatonin (which is also found in the gut, by the way), you lose your normal sleep pattern, which then cascades into a whole host of health problems.