Thanks, these are all good points - I'll stick with it.
By the way, not that you asked, but since you mentioned sleep (or lack thereof), I find that one cup of Greek Yogurt (plain 2%), a couple of tablespoons of wheat germ, and 1 or 2 tablespoons of Montmorency tart cherry juice concentrate work very well if taken right before bed (I stil have the TV on to settle down, but I'm usually out within an hour).
I also take 1-2 teaspoons of fish oil, but that is usually with my last big meal (the DHA in fish oil needs other fats to be absorbed - might work with the yogurt, but I have more fat in my last big meal). Yogurt has tryptophan which helps melatonin production, as does the DHA in fish oil. The cherry juice has melatonin, and finally, the wheat germ has a moderate amount of B6, which calms the nervous system (too much of this, like in ZMA, gives you weird dreams and tends to wake me up).