One problem I have is insomnia from sugar, or even from starch around midday. Last night I tested whether carrots (high sugar content) just before going to bed would trigger insomnia. Yup, wide awake at 12:30 AM. I'm out of melatonin, but did have some 5-HTP. I took that sublingual, just in case some would cross the BBB directly. I'm not sure how long I lay awake, but I woke up around 7:30 without interruption, so it seemed to help. I'll have to give up carrots now.