> After going through a lot of pub-med researches about decreasing my blood triglyceride levels, I found out that I have to get rid of sugar and saturated fat completely, and eat foods with low glycemic index.

I'm doing basically the opposite - I avoid polyunsaturated oils as much as possible, and prefer simple sugars (fruit juices) over starches. I'm starting to sleep much better, which I think is a good sign, for me.