I hadn’t heard before that melatonin could raise blood sugar. Normally I watch for such an effect when I try out a new supplement, and so far the only problem I’ve had is with krill oil which I now use only occasionally.

The website naturalsleep.org has some interesting articles on various issues related to sleep. Here is a link on side effects of melatonin:

http://www.naturalsleep.org/side-eff...onin/#more-169